naismith engineering product guide

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PRODUCT GUIDE POWER TRANSMISSION - PNEUMATIC CYLINDERS 2005 PRODUCT GUIDE PRODUCT GUIDE POWER TRANSMISSION - PNEUMATIC CYLINDERS POWER TRANSMISSION - PNEUMATIC CYLINDERS 2005

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Page 1: Naismith Engineering Product Guide

PRODUCT GUIDE

POWER TRANSMISSION - PNEUMATIC CYLINDERS

2005

PRODUCT GUIDEPRODUCT GUIDE

POWER TRANSMISSION - PNEUMATIC CYLINDERSPOWER TRANSMISSION - PNEUMATIC CYLINDERS

2005

Page 2: Naismith Engineering Product Guide

DRIVE LINE

T and AT are the European standard. Naismith Engineering stock a full range of pulleys and belts. The pulleys are all in aluminium. Clamp plates, to suit long length belting, are also available.

METRIC TIMING PULLEY & BELT (T & AT)

T2.5T5T10AT5AT10

Pitch 2.5mm 5mm10mm5mm10mm

Widths6mm10mm, 16mm & 25mm16mm, 25mm, 32mm & 50mm10mm, 16mm & 25mm16mm, 25mm, 32mm & 50mm

POLY-V PULLEY & BELT

PAGE 4

Industry standard Vee Pulleys are available in cast iron, taper bored.

Vee Pulley stock range includes.SPA 80mm - 500mm , 1 - 5 groovesSPB 125mm - 1250mm , 2 - 8 groovesSPC 200mm - 1250mm , 3 - 8 groovesSPZ 56mm - 355mm , 1 - 4 grooves

Vee Belt stock range includes.A, B, C, D & M sectionSPA, SPB, SPC & SPZ section

Also available is link type belting and round belting

VEE PULLEY & BELT

Timing Bars are available to suit XL, & L Classical timing profiles, 3M & 5M HTD timing profiles and T5, T10, AT5 & AT10 Metric timing profiles. All Timing Bars are manufactured in aluminium and come in lengths of 140mm or 160mm depending on the diameter of the bar.

TIMING BAR (T, AT,XL,L)

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

‘J’ Section ‘L’ Section

20mm to 400mm diameter 75mm to 400mm diameter

4 Groove to 16 Groove 6 Groove to 20 Groove

A full range of belts in ‘J’, ‘L’ & ‘M’ section is also available.

‘J’ Section ‘L’ Section

150J (381mm long) to 500L (1270mm long) to

980J (2489mm long) 2400L (6096mm long)

Poly-V Pulley and Belt drives are ideal where you have space restrictions, high ratio or high torque drives. With only one belt, tensioning is easy and you do not have to worry about matching belts. They will also run quieter than timing pulley and chain drives and do not slip like a standard V-Pulleys.

‘M’ Section

Manufactured against order

‘M’ Section

900M (2286mm long) to

6010M (15266mm long)

Page 3: Naismith Engineering Product Guide

Naismith Engineering is one of Australia's largest stockists of Classical timing pulleys.We also carry the rubber belts to suit from Gates. Pulleys are available in both pilot &taper bore. Plastic pulleys are available for both ‘XL’ & ‘L’. Clamp plates, to suit longlength belting, are also available. Special pulleys in aluminium and steel aremanufactured in our own factory.

The next step in high performance drives, HTD allows higher torque and speeds. Westock a large range of pulleys. We also carry the rubber belts to suit from Gates. Pulleysare available in both pilot & taper bore. Clamp plates, to suit long length belting, arealso available. Special pulleys in aluminium and steel are manufactured in our ownfactory.Powergrip G.T. Belts are available on fast delivery.

PAGE 3

CLASSICAL TIMING PULLEY

HTD (High Torque Drive)

The latest in high performance belt drives, and can last up to 5 times longer thanproblem roller chain drives. Pulleys and belts are available.

POLY CHAIN GT2

XL (Extra Light)L (Light)H (Heavy)XH (Extra Heavy)

Pitch

0.200" (1/5")0.375" (3/8")0.500" (1/2")0.875" (7/8")

Widths

3/8"½" & 1"

1", 1 1/2", 2" & 3"2" & 3"

Pitch

3mm5mm8mm14mm

Widths

9mm, 15mm9mm, 15mm, 25mm20mm, 30mm, 50mm & 85mm40mm, 55mm, 85mm & 115mm

Pitch

8mm14mm

Widths

12mm, 21mm, 36mm & 62mm20mm, 37mm, 68mm, 90mm & 125mm

DRIVELINE

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 4: Naismith Engineering Product Guide

PAGE 2

POWER TRANSMISSION - PNEUMATIC CYLINDERS

DRIVE LINE Page 3 - 7

SHAFT COUPLINGS

BRAKES & CLUTCHES Page 41 - 42

LOCKING BUSHES Page 34 - 38

VARIABLE SPEED Page 27 - 33

GEARBOXES & TIMING DEVICES Page 43 - 45

LINEAR ACTUATORS Page 46 - 47

INDEX

OVERLOAD PROTECTORS Page 26

CHAIN & BELT TENSIONERS Page 8 - 11

Page 12 - 25

SHAFT COLLARS Page 39 - 40

This Product Guide provides an overview of the entire Naismith Engineeringproduct range.

To ensure prompt service and delivery, Naismith Engineering stock 95% of theproducts in this Product Guide on the shelf.Special pulleys and sprockets, as well as bore and keyway work is performed inour own factory.Naismith Engineering is committed to servicing your power transmission needs.

Further in-depth information, such as dimensional andperformance data, is available in our product specific catalogues (refer to backpage for details).

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 5: Naismith Engineering Product Guide

DRIVE LINE

PAGE 7

TRP ROLLER CHAIN

‘UR’ CHAIN

‘LU’ CHAIN

Sintered Bushing roller chain uses bushings made of sintering alloy steel powder. Theporous spaces of the sintered bushings are impregnated with oil before hand, to increasethe life of the chain. However, sintered bushing roller chains are for low speed and lightduty applications.

The ‘LU’ chain has a film of fine crystallite that absorbs oil well. This chain is mostsuitable where splattering of oil and grease must be avoided. LU chain coated withgrease improves wear and resistance to corrosion. Temperatures up to +120° C.

SPECIAL LUBRICATION ROLLER CHAIN

25LU

35LU

40LU & UR

41LU

50LU & UR

60LU & UR

80LU & UR

100LU

120LU

1/4“3/8“1/2“1/2“5/8“3/4“

1“1 1/4“1 1/2“

A.S.A. American

Standard

Conveyor Series

Standard Roller

1"1 1/4"1 1/2"

2"

C2040LU & UR

C2050LU & UR

C2060LU & UR

C2080UR

Conveyor Series

Large Roller

C2042LU & UR

C2052LU & UR

C2062LU & UR

C2082UR

1"1 1/4"1 1/2"

2"

Due to increased demand for a cheaper alternative to our high quality 'EK' chain madein Japan, we now have in stock a range of 'TRP' chain imported from China. Pricingshould be very competitive with other brands available, and as with all NaismithEngineering stock lines, we carry the stock on the shelf, so that it is there when youneed it.

04B

05B

06B

08B

10B

12B

-1

-1

-1

-1

-1

-1

6mm8mm3/81/25/83/4

""""

16B

20B

24B

28B

32B

-1

-1

-1

-1

-1

11 1/41 1/21 3/4

2

"""""

B.S. British Standard

25

35

40

50

60

80

-1

-1

-1

-1

-1

-1

1/43/81/25/83/4

1

""""""

100

120

140

160

200

-1

-1

-1

-1

-1

1 1/41 1/21 3/4

22 1/2

"""""

A.S.A. American Standard

Transmission Series

2040

2050

2060

11 1/41 1/2

"""

Conveyor Series

Standard Roller

1"1 1/4"1 1/2"

2"

C2040

C2050

C2060H

C2080H

C2042

C2052

C2062H

C2082H

1"1 1/4"1 1/2"

2"

06B-2

08B-2

10B-2

12B-2

16B-2

3/81/25/83/41

""""

"

35SS

40SS

50SS

60SS

3/81/25/83/4

""""

35N-1

40N

50N

60N

-1

-1

-1

3/81/25/83/4

""""

415

415H

Special Chains

1/2""1/2

Grease is sealed with X-Rings between pin and bushing. The X-Ring design offersgreater protection than the previous O-Ring design. It can be used in a very wide rangeof applications from low speed to high speed and from light duty to heavy duty,ensuring longer life. Furthermore, it is durable to some extent even at high temperature,and a chain adopting heat resistant X-Rings has actually been used in a 200 C oven.Since the pin length becomes longer by two X-Rings, refer to the catalogue fordimensions.

º

X-RING CHAIN

40L

50L

60L

80LD

100LD

1/25/83/4

11 1/4

"""""

A.S.A. American

Standard

08BL

10BL

12BL

16BL

1/25/83/41

"""

"

B.S. British

Standard

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

S32

S52

S55

S62

1.15"1 50"1 63"1.65"

Conveyor Series

Large Roller

Agricultural

Chain

Page 6: Naismith Engineering Product Guide

E.K. Rustless chain is an outstanding corrosion resistant chain because its surface isnickel plated. Rustless chain without grease has less performance than LU chain.However, the chain with grease shows good anti-corrosion performance. In a situationwhere chain is exposed to the possibility of hydrogen embrittlement caused by acidvapour or salty environment, nickel plating delays the corrosive effect on the chain.

NICKEL PLATED CHAIN

60N

80N

100N

120N

3/41""

1 1/4"1 1/2"

A.S.A. American

Standard

Conveyor Series

Standard Roller

1"1 1/4"1 1/2"

2"

C2040N

C2050N

C2060HN

C2080HN

Conveyor Series

Large Roller

C2042N

C2052N

C2062HN

C2082HN

1"1 1/4"1 1/2"

2"

B.S. British

Standard

05BN

06BN

08BN

10BN

12BN

16BN

8mm3/8“1/2“5/8“3/4“

1“

25N

35N

40N

50N

1/43/81/25/8

""""

A.S.A. American

Standard

DRIVE LINE

E.K. stainless steel chain, SS type, has the most superior performance resistance tocorrosion and heat. All components are made of austenitic stainless steel. This is whythe tensile strength of SS type is slightly less than 70% of standard steel roller chain,and the maximum allowable load is slightly greater than 10% of standard steel chain.

STAINLESS STEEL ROLLER CHAIN

60SS

80SS

100SS

120SS

3/41""

1 1/4"1 1/2"

A.S.A. American

Standard

Conveyor Series

Standard Roller

1"1 1/4"1 1/2"

2"

C2040SS

C2050SS

C2060HSS

C2080HSS

Conveyor Series

Large Roller

C2042SS

C2052SS

C2062HSS

C2082HSS

1"1 1/4"1 1/2"

2"

B.S. British

Standard

05BSS

06BSS

08BSS

10BSS

12BSS

16BSS

8mm3/8“1/2“5/8“3/4“

1“

25SS

35SS

40SS

50SS

1/43/81/25/8

""""

A.S.A. American

Standard

Leaf chain consists solely of pins and link plates assembled together. Hence it hasimproved tensile strength compared with roller chain and better suited for suspensionand tension. D.I.D. leaf chains are in accordance with ANSI standard and are availablein two alternatives of AL type and BL type.

LEAF CHAIN

AL Series

AL4xx

AL5xx

AL6xx

AL8xx

AL10xx

AL12xx

AL14xx

AL16xx

xx = Lacing

1/2""""""""

5/83/4

11 1/41 1/21 3/4

2

BL Series

BL4xx

BL5xx

BL6xx

BL8xx

BL10xx

BL12xx

BL14xx

BL16xx

1/2"5/8"3/4"

1"1 1/4"1 1/2"1 3/4"

2"

AL

BL

Used primarily for light dutyand slow speed applications, wherelittle importance is attached to wearresistance.

Used for repetitive high impactloading applications, where moreimportance is attached to wearresistance.

2 X 2

4 X 4

2 X 3

4 X 6

3 X 4

6 X 6

PAGE 6Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

This chain has hollow pins and the through hole of each pin can be used toaccommodate various rods and attachments. Hollow Pin chain is available in steel,nickel plated & stainless steel chain.

HOLLOW PIN ROLLER CHAIN

40HP

50HP

60HP

80HP

1/2""""

5/83/4

1

A.S.A. American

Standard

Conveyor Series

Standard Roller

1"1 1/4"1 1/2"

2"

C2040HP

C2050HP

C2060HP

C2080HP

Conveyor Series

Large Roller

C2042HP

C2052HP

C2062HP

C2082HP

1"1 1/4"1 1/2"

2"

Page 7: Naismith Engineering Product Guide

D.I.D HI*PWR roller chain is designed to provide higher tensile strength and betterability to withstand impact loading. The chain is recommended for slow to moderatespeed drive and heavy loading conditions, but can also be used for high speed. HI*PWRchain has thicker side plates and hardened through pins.

DRIVE LINE

PAGE 5

Double pitch conveyor chain has a pitch double that of the standard type roller chain. Itincorporates the same round parts as the standard type roller chain. Hence it is lighter inweight and more economical than the standard type. The double pitch conveyor chain isavailable in two alternatives of standard roller type and large roller type. This allowscompact conveyor layout by fitting suitable attachments according to the intended use.

DOUBLE PITCH CHAIN

Transmission Series

2040

2050

2060

11 1/41 1/2

"""

Conveyor Series

Standard Roller

1"1 1/4"1 1/2"

2"2 1/2"

3"

C2040

C2050

C2060H

C2080H

C2100H

C2120H

Conveyor Series

Large Roller

C2042

C2052

C2062H

C2082H

C2102H

C2122H

1"1 1/4"1 1/2"

2"2 1/2"

3"

HI*POWER ROLLER CHAIN

60HK-1

80HK-1

100HK-1

120HK-1

140HK-1

160HK-1

3/41""

1 1/4"1 1/2"1 3/4"

2"

A.S.A. American

Standard

The E.K. standard roller chains are available in sizes ranging from ¼" to 2 ½" includingthose in conformity with BS (British Standards) and ANSI (American National StandardInstitute). The following sizes are available in simplex, duplex & triplex. Some sizes areavailable in 4 strand, 5 strand & 6 strand.

Heavy duty roller chain is designed to provide greater impact resistance with link platesof increased thickness to standard roller chain.

STANDARD ROLLER CHAIN

05B

06B

08B

10B

12B

8mm3/81/25/83/4

""""

16B

20B

24B

28B

32B

11 1/41 1/21 3/4

2

"""""

B.S. British Standard

50H-1

60H-1

80H-1

100H-1

120H-1

140H-1

5/83/4

1

"""

1 1/4"1 1/2"1 3/4"

60H-2

80H-2

100H-2

3/4"1"

1 1/4"

A.S.A. American Standard

25

35

40

50

60

80

1/43/81/25/83/4

1

""""""

100

120

140

160

200

1 1/41 1/21 3/4

22 1/2

"""""

A.S.A. American Standard

Naismith Engineering stock a large range of sprockets, most of the pinions have flamehardened teeth. Weld on hubs are also available from stock, so plate sprockets are easilymade up into taper bore sprockets. Special steel and stainless steel sprockets aremanufactured in our own factory.

B.S. Simplex & Plate Wheels 8mm, 3/8" up to 1 1/2

B.S. Duplex 3/8" up to 1

B.S. Triplex 3/8 , 1/2" 3/4" & 1”

A.S.A. Simplex & Plate Wheels 1/4" up to 2 1/2

B.S. Simplex Taper Bore 3/8" up to 1

B.S. Duplex Taper Bore 3/8", 1/2" 3/4" & 1

B.S. Triplex Taper Bore 3/4" & 1

Stock Range Includes.

SPROCKET

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 8: Naismith Engineering Product Guide

CHAIN & BELT TENSIONERS

The ARCO Tensioner is very slim, making it ideal for very narrow applications. Withmany different ways of fitting the ARCO, the installation applications are endless. It can move 40 degrees in both directions and be used in conjunction with Sprockets and Polyethylene Slide Blocks to suit British Standard simple, duplex and triplex chain, and Rollers in both zinc plated steel and plastic.

ARCO - D.O.M.

ROLLER - D.O.M.

PAGE 10

SPROCKET - D.O.M.

The TEN BLOC Tensioners has a self aligning head that can swing through 360 degrees to align with the chain or belt. It has an aluminium body and steel nickel plated column. It is capable of higher torques than other similar type tensioners. It comes pre-assembled with a Sprocket or Polyethylene Slide Block to suit British Standard simple, duplex or triplex chain.

TEN BLOC - D.O.M.

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

D.O.M. sprockets are manufactured in three materials, zinc plated steel, plastic, and stainless steel. They are available to suit British Standard simple, duplex and triplex chains. The assembly is supplied with a bearing and bolt set to suit They can be used at

ospeeds up to 60m/min and temperatures up to +100 C.

D.O.M. rollers are manufactured in three materials, zinc plated steel, plastic, and stainless steel . The rollers are fitted with greased bearings and some are available with cover shields for use in the food industry or other specialist applications. The steel and

ostainless steel rollers can be used in temperatures up to +100 C, while the plastic rollers

omay only be used up to +70 C.

Page 9: Naismith Engineering Product Guide

The BLUD Plastic Tensioner is available in three different styles. The standard allows for compact installation in tight applications, the Extended Bracket Type as ideal for narrow installations, and the L-Shaped Bracket Type is completely versatile allowing for 3 different mounting positions. The BLUD is manufactured in plastic and uses stainless steel screws with the bracket also manufactured in stainless steel. The internal spring is available in zinc plated steel

oor stainless steel. Maximum operating temperature is +80 C. All bodies are supplied with a preloading system to allow the unit to be bolted into position and then release the tension.The tensioner can be fitted with a variety of different accessories including Polyethylene Slide Blocks to suit British Standard simple, duplex and triplex chain, and Rollers in zinc plated steel and plastic. The stroke length of the BLUD is 40mm.

BLUD - D.O.M.

ASSO - D.O.M.

TEN JOY - D.O.M.

The MIX Tensioner is available in two sizes but it can be used in many ways making it a very versatile manual tensioner. There are varying accessories available that can be used including Sprockets and Polyethylene Slide Blocks to suit British Standard simple and duplex chain, and Rollers in both zinc plated steel and plastic.

MIX - D.O.M.

The ASSO Tensioner is ideal for taking up tension on chain or belting where no shock absorption is required. A basic zinc plated steel arm, it can be used in conjunction with Sprockets and Polyethylene Slide Blocks to suit British Standard simple and duplex chain, and Rollers in both zinc plated steel and plastic.

The TEN JOY Tensioner is ideal for applications which are very tight for room. It can be used in conjunction with Sprockets or Polyethylene Slide Blocks to suit British Standard simple, duplex and triplex chain, and Rollers in both zinc plated steel and plastic.

CHAIN & BELT TENSIONERS

PAGE 9Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 10: Naismith Engineering Product Guide

The C-R.E.S.A. Steel Tensioner Arm is highly elastic and has a great ability to absorbshocks, knocks, vibrations and oscillations. This is produced by four rubber cushionshidden inside the unit. The tensioner arm can reach an angle of 30° in either aclockwise or an anti-clockwise rotation.The tensioner can be fitted with a variety of different accessories including Sprockets orPolyethylene Slide Blocks to suit British Standard simple, duplex and triplex chain, andRollers in zinc plated steel or plastic. C-R.E.S.A. is manufactured in steel and has a

maximum operating temperature of +80 C.D.O.M. tensioners are interchangeable with industry standards.

o

The CIAO Plastic Tensioner Arm is highly elastic and has a great ability to absorbshocks, knocks, vibrations and oscillations. This is produced by four rubber cushionshidden inside the unit. The tensioner arm can reach an angle of 30° in either aclockwise or an anti-clockwise rotation.The tensioner can be fitted with a variety of different accessories including BritishStandard simple sprockets made of stainless steel or plastic, Polyethylene Slide Blocksto suit simple, duplex and triplex chain and Rollers in stainless steel and plastic withcover shields. The CIAO is manufactured in plastic with stainless steel bolts, and has a

maximum operating temperature of +80 C.o

The BLU Tensioner is manufactured in plastic and uses stainless steel screws. Theinternal spring is available in zinc plated steel or stainless steel. Maximum operating

temperature is +80 C. All bodies are supplied with a preloading system to allow the unitto be bolted into position and then release the tension.The tensioner can be fitted with a variety of different accessories including Sprockets orPolyethylene Slide Blocks to suit British Standard simple and duplex chain, and Rollersin zinc plated steel and plastic. The stroke length of the BLU is 40mm. Unless specified,the BLU tensioner will be assembled in the position as shown.

o

C-RESA - D.O.M

CIAO - D.O.M.

BLU - D.O.M.

CHAIN & BELTTENSIONERS

PAGE 8Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 11: Naismith Engineering Product Guide

This design is the European standard jaw coupling, as well as in many other parts of theworld. When equipment from overseas is used in Australia, Naismith Engineering canprovide the replacement flexible couplings and elastomers.These couplings require no lubrication and provide highly reliable service for light,medium and heavy duty electrical motor and internal combustion power transmissionapplications.

Other features and benefits include:• Fail-safe - will still perform if elastomer fails.• No metal to metal contact.• Resistant to oil, dirt, sand, moisture and grease.

CURVED JAW - Lovejoy

The simple design of the S-Flex coupling ensures ease of assembly and reliableperformance. No special tools are needed for installation or removal. S-flex couplingscan be used in a wide variety of applications. The S-Flex coupling is comprised of threeparts:- two flanges with internal teeth engage an elastomeric flexible sleeve withexternal teeth. It is available in pilot bore, taper bore and also as a spacer coupling.

Other features and benefits include:• No metal to metal contact.• Resistant to oil, dirt, sand, moisture and grease.• Dampens vibrations and controls shock.• Torsionally soft.

S-FLEX - Lovejoy

These couplings provide standard shaft-to-shaft connection for medium duty rangeapplications. The standard C coupling hub is made of cast iron. The coupling uses a setof SXB cushions instead of a spider. The load cushions are held in place radially by asteel collar which is attached to one of the hubs. The cushion design has the sameengineering purpose as the spider design but is more effective in the medium dutyapplications that ‘C’ Type couplings address.

‘C’ TYPE - Lovejoy

The RRS coupling is based on the standard Lovejoy Jaw type coupling. The center‘drop out’ section of this coupling provides proper shaft separation while also allowingeasy elastomer installation without disturbing the hubs or requiring realignment ofshafts. Designed for the pump industry, it accommodates metric standard pump/motorshaft separations. The ‘drop out’ spacer is made of glass reinforced plastic, cast iron oraluminium.

‘RRS‘ TYPE - Lovejoy

COUPLINGS

PAGE 13Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 12: Naismith Engineering Product Guide

SHAFT COUPLINGS

‘AL‘ TYPE The aluminium construction means this coupling is light weight with low overhung load and low inertia. The AL type also offers excellent resistance to atmospheric conditions, so it is perfect for corrosive environment applications.

‘SS‘ TYPE

Hubs can be used with inserts in 4 different materials: Buna-N (Sox), Urethane, Hytrel and Bronze.

Stainless steel construction gives maximum protection to corrosive atmospheric conditions. Hubs can be used with inserts in 4 different materials: Buna-N (Sox), Urethane, Hytrel and Bronze. Lovejoy’s SS-type jaw coupling offers a new level of affordability and availability.

‘AL‘ & ’SS‘ TYPE - Lovejoy

The spider is non-fail-safe and thus acts as a fuse to prevent equipment damage in the event of torque overloads. It is radially removable, meaning that neither hub (or driver/driven equipment) has to be moved to replace the spider. This saves time and money in maintenance costs. The retaining ring which encloses the In-Shear Spider has 6 Pins which slide into grooves in the perimeter of the spider and twist-lock into place. It will not work its way loose and since there are no fasteners involved, maintenance removal of the spider takes only a few minutes. This coupling uses the standard L-type and C-type jaw coupling hubs. Existing applications using in-compression spiders can simply be retrofitted with the new In-Shear spider if the features are beneficial. The Jaw In-Shear spider is made from urethane and has different power ratings to the standard jaw coupling. It also uses different service factors.

‘LS‘ & ‘CS’ TYPE JAW IN-SHEAR - Lovejoy

The Jaw Type couplings from Lovejoy are offered in the industry's largest variety of stock bore/keyway combinations. These couplings require no lubrication and provide highly reliable service for light, medium and heavy duty electric motor and internal combustion power transmission applications.

Other features and benefits include:• Fail-safe - will still perform if elastomer fails.• No metal to metal contact. • Resistant to oil, dirt, sand, moisture and grease.

Hubs can be used with inserts in 4 different materials: Buna-N (Sox), Urethane, Hytrel and Bronze.

‘L‘ TYPE - Lovejoy

PAGE 12Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 13: Naismith Engineering Product Guide

The Polyethylene Slide Block is available for use with British Standard simple, duplex and triplex chains. The assembly is supplied with a bolt set to suit. It is normally used in slower speed applications and has an operating speed range up to 20m/min and a

omaximum working temperature of +70 C.

SLIDE BLOCK - D.O.M.

CHAIN & BELT TENSIONERS

PAGE 11Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The OVR & XOV Slide Blocks are available for use with British Standard simple chain. They are oval in shape allowing you to use both sides of the slide block giving double the life of a standard unit. Both are made in machined polyethylene HD100 and the XOV comes complete with stainless steel nuts and bolts. British Standard duplex and triplex chains can be accommodated by simply bolting 2 or 3 slide blocks together.

OVR & XOV SLIDE BLOCKS - D.O.M.

D.O.M. make a large range of damping and anti-vibration mounting units. Using the same basic principle as the tensioner arms, the anti-vibration mounting units come in more than twenty different designs and can be used with many different mounting brackets. The list of applications where you can use them is almost endless, from motor mounts and cushions for crushing machines to anti-vibration laboratory equipment. They may also be used as the pivots for a shaker bed.

VIB - D.O.M.

The TA model from SIT represents the basic model of the range and consists of a body in alloy, containing the elastic elements, and a lever in galvanized steel. The alloy body can be one of two according to size; TA1, the smallest, and TA2.

The SIT chain tensioner device in the TA-RDF & TA-RDR models consists of a TA tensioner and a sprocket mounted on a watertight ball bearing. To use with duplex or triplex chains requires the assembly of a special series of sprockets. TA-RDF Sprockets are axial fixed. TA-RDR sprockets are axial adjustable.

CHAIN TENSIONER - Sit S.p.A.

Page 14: Naismith Engineering Product Guide

‘C‘ TYPE (FLEX - FLEX)The ‘C’ type is the basis for all types of Lovejoy Sier-Bath continuous sleeve flexible gear couplings. It is suitable for most applications. Gear teeth are precision cut at 20 degrees pressure angle with minimum backlash, and are smaller for even distribution of load, greater capacity and longer life.

‘CFR’ TYPE (FLEX - RIGID)The flex-rigid gear coupling consists of a flexible hub and a rigid hub with a single sleeve. The flexible hub is a standard hub from a flex-flex coupling. The rigid hub uses a splined type hub. The flex-rigid coupling accommodates angular misalignment only and does not allow for parallel misalignment.

SIER-BATH GEAR ‘C’ & ‘CFR’ - Lovejoy

‘F‘ TYPE (FLEX - FLEX)Double engagement provides for parallel misalignment, angular misalignment and end float with the ability to accommodate close coupled application requirements.

‘FFR’ TYPE (FLEX - RIGID)Single engagement accommodates angular misalignment only and does not allow for parallel misalignment. This design consists of a flexible and rigid half, most commonly used in floating shaft applications to solve remote drive and excessive misalignment problems.

FA couplings in 4140 Alloy Steel, and FLA couplings with Metal Labyrinth Seals are also available.

SIER-BATH GEAR ‘F‘ & ’FFR‘ - Lovejoy

The Lovejoy Grid type flexible coupling reduces vibration by as much as 30%, and cushions shock loads to safeguard your driving and driven equipment. The flexible nature of the spring like grid absorbs impact energy by spreading it out over time, thus reducing the magnitude of the peak loads. This is possible because of the progressive contact that occurs between the curved profile of the hub teeth and the flexible grid. Grid couplings are designed for versatility. Common hubs and grids are used within a given size range for both horizontal and vertical split cover models. Grid installation and replacement is a 'snap', making maintenance very easy.

GRID - Lovejoy

COUPLINGSCOUPLINGSCOUPLINGSCOUPLINGSCOUPLINGSCOUPLINGSCOUPLINGS

PAGE 16Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Lovejoy/Jaure disc coupling is a great low maintenance coupling. It has been developed using the latest technology, Finite Element Analysis, to create a high torque, long life coupling. The discs are made from a high-grade stainless steel, ensuring not only a high strength and high endurance to fatigue, but also resistance to most chemicals. Furthermore, the discs can be covered with a low coefficient of friction coating to improve the resistance to fretting wear, which is the biggest cause of disc coupling failure. Disc couplings to meet A.P.I. 610 available on request.

JAURE DISC - Lovejoy

Page 15: Naismith Engineering Product Guide

COUPLINGS

The Mini Soft miniature coupling from Lovejoy provides protection from misalignment, vibration and shock loads. The simple design of the coupling ensures ease of assembly, installation and reliable performance. No special tools are needed for installation or removal. No lubrication is needed and once installed and aligned correctly, no maintenance is required.

Other features and benefits include:• Multiple tooth contact, low load per tooth. • Good axial freedom. • Good dampening capacity. • Good torsional stiffness. • High speed capability.

MINI SOFT - Lovejoy

The Lovejoy Oldham coupling is a precision engineered, torsionally stiff, three part coupling. It is suitable for a great many applications ranging from incremental control of fluid valves to highly dynamic drives in a closed loop servo system. It accommodates misalignment mechanically through a floating disc that engages tenons machined out of the hubs. Under severe overload the element will break cleanly, and act as a mechanical fuse to protect equipment.

Other features and benefits include:• Positive engagement. • Good parallel misalignment capacity. • Vibration damping ability.• Easy to install.

OLDHAM - Lovejoy

Saga is a general purpose torsionally soft coupling with high tolerance to all forms of misalignment. The rubber between each apex is precompressed, so it is much more durable to the stresses arising from the various forms of misalignment and torsional vibrations.

Other features and benefits include:• No end thrust in misalignment position. • Absorbs misalignment and shock. • No axial reaction force.

SAGA - Lovejoy

PAGE 15Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The unique design, misalignment capability and simple installation, make Deltaflex easily adaptable to special applications. This is an all metal coupling and is also available in stainless steel. High misalignment capability means that there is less reactionary load on the rest of the machine.

Other features and benefits include:• Operates smoothly when misaligned. • No lubrication.• No backlash. • Many standard coupling configurations for application versatility.

DELTA FLEX - Lovejoy

Page 16: Naismith Engineering Product Guide

COUPLINGS

NEEDLE BEARING TYPE

Designed with high quality, pre-lubricated and sealed needle bearings, this universal joint provides the reliability necessary for speeds up to 6000 RPM, and operating angles up to 25°.Needle bearing universal joints also ensure the precision required for robotics, instrumentation, control equipment, and many other demanding applications. It is available assembled with both no bore or with a pilot bore. Protective rubber boots are available to ensure proper lubrication for up to five times longer universal joint life.

UNIVERSAL JOINT - Lovejoy

STAINLESS STEEL

‘D’ Type universal joints are available in stainless steel. For use when contact with corrosive chemicals, exposure to corrosive atmosphere, or sanitation requirements are a factor. It is available unassembled with no bore, or assembled with a pilot bore. Protective rubber boots are available to ensure proper lubrication for up to five times longer universal joint life.

UNIVERSAL JOINT - Lovejoy

‘LOJ‘ TYPE

These economical universal joints have an offset pin design. They are ideal for use on hand operated, low torque drives such as remote control linkages, awning devices, and much more. Capable of operating angles up to 45°.

UNIVERSAL JOINT - Lovejoy

‘D‘ TYPE

A standard industrial type universal joint with pin and block design, the ‘D’ type is ideal for applications with up to 25° angular misalignment and speeds up to 1750 RPM. It is available unassembled with no bore, or assembled with a pilot bore. Protective rubber boots are available to ensure proper lubrication for up to five times longer universal joint life.

‘HD’ TYPE

The ‘HD’ Type is a high quality universal joint made to exacting tolerances, perfect for your toughest high angle, high RPM applications. Precision machining, hardened yokes and matched fitting of all components means that it normally provides at least twice the life of a standard industrial type universal joint. It is available unassembled with no bore, or assembled with a pilot bore. Protective rubber boots are available to ensure proper lubrication for up to five times longer universal joint life.

UNIVERSAL JOINT - Lovejoy

PAGE 14Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 17: Naismith Engineering Product Guide

STANDARD TYPE

NEEDLE BEARING TYPE

The SIT universal joint is a very versatile universal joint with a maximum speed of1000RPM and a maximum angle 45º with the E type and 90º with the ED type.

The Sit Needle Bearing universal joint is a very versatile universal joint with amaximum speed of 4000RPM and a maximum angle 45º with the H type and 90º withthe HD type.

UNIVERSAL JOINT - SIT S.p.A.

COUPLINGS

‘ES’ TRASCO - SIT S.p.A.Trasco ES backlash free couplings are available in both standard & clamp style hubs.Element shore hardness of 65D, 80A, 92A & 98A are available across the range. Hubsup to size 38/45 are available in aluminium while the sizes above are manufactured insteel.

PAGE 19Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Sitex coupling is a gear coupling that uses two steel hubs and a superpolyamideresin sleeve. The combination of steel hubs and a polyamide sleeve makes the couplingmaintenance and lubrication free. Sitex couplings match the industry standard so theyare interchangeable with many other brands.

SITEX - SIT S.p.A.

The Juboflex coupling consists of two steel hubs and a precompressed natural rubberelement. The four smaller sizes come to suit taper bushes and the other four are pilotbore. The coupling has excellent dampening properties and can take high misalignment.

JUBOFLEX - SIT S.p.A.

Page 18: Naismith Engineering Product Guide

COUPLINGS

‘CWN’ TYPE - Nenflex

‘SPACER’ TYPE - Nenflex

‘N’ TYPE

‘SWN’ TYPE

The ‘N’ type is the most common shaft to shaft jaw coupling around with star shapedspider. Made to industry standard and available in a wide range of bore sizes.

The ‘SWN’ type is a shaft to shaft jaw coupling with all the advantages of the ‘N’ seriesbut with the wrap around element and retaining collar. The wrap around insert fromNenflex has the following advantages.

- Special shape profile which does not result in a 100% contact at no load condition &thereby prevents heat build up & hysteresis failure.

- Spacer ribs no longer require gaps to be maintained during assembly.- Vertical ribs grip the wrap around element firmly within the steel retaining ring.

Spiders available in rubber and urethane.

‘N’ & ‘SWN’ TYPE - Nenflex

‘CWN’ Series

The ‘CWN’ type is a shaft to shaft jaw coupling with T-insert elements and retainingcollar. The T-inserts are specially designed for ease of installation and removal. The‘CWN’ series is used for higher power requirements than the ‘N’ or ‘SWN’ series. Alsoavailable with standard rubber spider.Inserts available in rubber and urethane.

‘HN’ SeriesNenflex also offer a larger capacity coupling for bores to 150mm and torque of up to13,000Nm

‘SWR’ SERIES

‘CWS’ SERIES

The ‘SWR’ type is a spacer coupling ideal for shaft to shaft connection. Ideally suited topump applications, as the spacer can be removed radially, without disturbing driver ordriven equipment. The wrap around insert from Nenflex has the following advantages.

- Special shape profile which does not result in a 100% contact at no load condition &thereby prevents heat build up & hysteresis failure.

- Spacer ribs no longer require gaps to be maintained during assembly.- Vertical ribs grip the wrap around element firmly within the steel retaining ring.

The ‘CWS’ type is a spacer coupling for shaft to shaft connection. The T-inserts arespecially designed for ease of installation and radial removal without disturbing thedriver or driven. The ‘CWS’ series is used for higher power requirements than the‘SWR’ series.

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Trasco ‘GR’ curved jaw coupling is available in many different configurations.These include; standard hubs, long hubs, aluminium hubs, bolt on flanges, and taperlock style hubs. Element shore hardness of 80A, 92A & 98A are available across therange. Many hubs are stocked already bored and keywayed to metric sizes.

‘GR’ TRASCO - SIT S.p.A.

PAGE 18

Page 19: Naismith Engineering Product Guide

The ‘B’ series coupling provides an economical flexible shaft coupling transmitting up to 1400Nm torque, a great all round coupling. The element is available in two designs, polyurethane (green) & hytrel (yellow).

Other features and benefits include:• Compact, light, robust design. • Dampens vibrations & shocks. • Compensates for axial, radial and angular misalignment.

CENTAFLEX ‘B’ - Centa

The ‘H’ series coupling is a torsionally stiff design that is the perfect solution to problems associated with Diesel-Hydraulic couplings. The hub and flange is the same as the ‘A’ series Centaflex coupling.

Other features and benefits include:• High speed.

o o• Extremely high thermal stability -50 C to +150 C.• Oil resistant.

CENTAFLEX ‘H’ - Centa

The ‘D’ series is a very reliable, well-proven coupling for generator sets, centrifugal pump sets and other similar drives. This range was designed for diesel driven generator and similar drives, and the wide range of flanges available will allow the coupling to be mounted directly on to most engine flywheels. The ‘D’ series couplings comprise six design sizes for nominal torques from 250Nm to 20,000Nm. This range will in practice cater for all diesel engines from 3 cylinders upwards to include ratings up to 2,500kW at 1500 RPM.

CENTAFLEX ‘D’ & ‘E’ - Centa

COUPLINGS

PAGE 17Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The ‘E’ series coupling is very similar to the ‘D’ series but has been designed to be mounted shaft to shaft on electric motor applications.

Other features and benefits include:• Simple, rubust, safe in operation, compact, fail safe. • Damps vibration and shock loads. • Accepts axial, angular & radial misalignment.

‘D’ Series

‘E’ Series

The ‘A’ series coupling consists of two steel hubs and a pre-stressed polygon shaped rubber element with metal parts vulcanised. The high quality element, which is extremely flexible in any direction, can be used for almost any purpose. This coupling is available in many styles.

Other features and benefits include:• Simple, compact, smooth face design. • High performance, high speed range. • Good shock & vibration absorbing. • Requires no maintenance. • No axial reaction forces.

CENTAFLEX ‘A’ - Centa

Page 20: Naismith Engineering Product Guide

PAGE 22

COUPLINGS

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Schmidt Control-Flex coupling was developed to satisfy the higher performancerequirements of today's modern power transmission drives. To meet this goal, SchmidtCoupling engineered the unique Control-Flex disc which is based on a parallel linkagesystem.Unlike elastomeric couplings, the Control-Flex disc allows parallel, angular and axialmisalignment, while offering higher torque rigidity and maintaining constanttransmission of torque and angular velocity.

CONTROL FLEX - Zero-Max

Only the Schmidt offset coupling, which requires a minimum offset, offers so muchflexibility in shaft displacement while maintaining undisturbed power transmission atconstant angular velocity. The coupling does not add secondary forces to the drive. Italso will not transmit radial vibration between the drive and the driven shafts. It is adynamically clean drive which will help provide a smooth flow of power for maximumproduct quality, and unlike universal joints, there is no performance loss by increasingshaft offset.Standard Schmidt offset couplings are available for parallel shaft displacement from aminimum of 4 to 440mm and torque capacities from 6.2 to 51,864Nm. Special couplingsizes can be manufactured for any specific customer requirement. The L100 seriescouplings will handle parallel shaft displacement from a minimum of 4mm to amaximum linear shaft displacement of 77mm with torque ratings from 6.2 to 146.8Nmand shaft speeds up to 4000 RPM. The L100 series is especially suitable for applicationsin business machines, optical, electronic equipment and robotics.The L200 and L300 series couplings are capable of handling parallel shaft displacementfrom a minimum of 11mm to a maximum linear shaft displacement of 440mm withtorque ratings from 71.9 to 51,864Nm and shaft speeds up to 2500 RPM. The L200 andL300 series are equipped with caged type needle bearings. The shafts are hardened andserve as the inner race of the needle bearings. The coupling can be mounted on shafthubs or directly to existing flanges. This mounting technique permits installation of theoffset coupling without any need to move either of the shafts being coupled.The Schmidt offset coupling has a slight built-in axial freedom to compensate forthermal shaft expansion and assembly tolerances. The maximum angular shaftmisalignment should be kept under one-half (%) degree.

SCHMIDT L100, L200 & L300 COUPLING - Zero-Max

Schmidt inline couplings are of the torque-rigid type, designed with two pairs of parallellinks installed 90 degrees out of phase with each other. This patented arrangementallows for the precise transmission of torque and constant angular velocity betweenshafts with relatively large parallel misalignments. The coupling utilizes needle bearingswhich can be preloaded for "zero" backlash conditions. Typical applications whichbenefit from the high accuracy provided by Schmidt inline couplings are feeders,embossers, compactors, printing presses and many others. Schmidt inline couplings areavailable for a torque range from 56 to 2,824Nm. Couplings for higher torquerequirements are made available on special order.

SCHMIDT L400 COUPLING - Zero-Max

Page 21: Naismith Engineering Product Guide

JAW - Ruland

RIGID - Ruland

Flexbeam™ zero backlash flexible shaft couplings are available with inch and metric bores and outside diameters ranging from 3/8" (6mm) to 1-1/2" (38mm). The Flexbeam series are machined from a single piece of aluminium and feature multiple spiral cuts.Stainless steel is also available.

BEAM - Ruland

Ruland’s zero backlash jaw couplings are three piece couplings comprised of two hubs and an elastic element. The spider, made of an advanced polyurethane material, provides dampening of impulse loads, minimizing shock to the motor and other sensitive equipment. Available in two shore hardnesses, these spiders allow the user to customize the jaw coupling's performance. Selecting a soft spider will give the Jawflex™ the greatest dampening characteristics, while a hard spider will provide the greatest torsional stiffness and strength. All spiders are press fit onto a curved jaw profile, ensuring zero backlash operation.

Ruland’s rigid couplings are available in one and two piece clamp designs, with and without keyways in steel and stainless steel. Clamp style rigid couplings wrap around the shaft, providing high torsional holding power without the shaft damage and fretting that occurs when a set screw style coupling is used. Two-piece clamp styles also allow for disassembly and maintenance without removal of other machine components and feature opposing hardware for a balanced design.

PAGE 21Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

COUPLINGS

The Zero-Max CD coupling is a unique hybrid coupling, combining the best features found in both steel and elastomeric couplings. Through its new open arm disc design and use of rugged composite materials, the coupling offers the high misalignment capacity found in many elastomeric couplings, but with higher torsional stiffness. Compared to steel disc couplings, these couplings offer superior damping and isolation shock and vibrational loads, including elimination of fretting corrosion. Double flex & spacer couplings are also available. Hubs also available in aluminium and stainless steel on indent.

COMPOSITE DISC - Zero-Max

Page 22: Naismith Engineering Product Guide

The bolt coupling is a rigid coupling. It is made of two cast iron halves, which are bolted together. The coupling is maintenance and lubrication free, and its construction prevents fretting corrosion and allows for easy installation and removal. The bolt coupling can be used with or without keyways.

PAGE 20

COUPLINGS

BOLT COUPLING - SIT S.p.A.

BELLOWS - RulandBelflex™ bellows couplings are an assembly of two aluminium hubs and a uniform, thin walled stainless steel bellows. The use of aluminium hubs with a bellows results in a coupling with very low inertia, a feature that is very important in today’s highly responsive systems. The characteristics of bellows make them an ideal method for transmitting torque in motion control applications. The bellows allow the coupling to bend easily under loads caused by the three basic types of misalignment between shafts (angular, parallel, axial motion). Among servo couplings, bellows type couplings are one of the stiffest available, making them ideal in high performance applications that require a high degree of accuracy and repeatability.

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

OLDHAM - RulandOldham couplings are three piece couplings comprised of two aluminium hubs and a center member. The center disc, which is available in a choice of acetal for high torsional stiffness or nylon for vibration and shock absorption, is the torque transmitting element. Torque transmission is accomplished by mating slots in the center disc, located on opposite sides of the disc and oriented 90 degrees apart, with the drive tenons on the hubs. The slots of the disc fit on the tenons of the hub with a slight press fit. This press fit allows the coupling (with an acetal disc) to operate with zero backlash. The coupling can act as a mechanical fuse to protect equipment.

Discflex™ is available in single and double disc styles with bore sizes ranging from 1/8" to 1.1/4" in the inch series and 3mm to 30mm in the metric series. The couplings are an assembly of two anodized aluminum hubs, multiple flat stainless steel disc springs and a center spacer for double disc styles. The center spacer is available in a choice of anodized aluminum or insulating acetal for electrical isolation. This results in a high performance motion control coupling with excellent high speed capabilities up to 10,000 rpm, strength and torsional stiffness characteristics, and low inertia for today's highly responsive systems.

DISC - Ruland

Page 23: Naismith Engineering Product Guide

The Normex coupling has a very distinctive element that weaves in and out between thejaws. It is very good at taking up misalignment between the driver and driven shafts.The coupling will also help to reduce vibrations and shock loads from the drive.Naismith Engineering stock the element and the hubs to suit

NORMEX

COUPLINGS

CONE RINGThe Cone Ring coupling is very popular. Naismith Engineering stock a full range ofCone Ring couplings in pilot bore and taper bore. Rigid couplings are available onrequest. Replacement rings are also available. The flexible element consists of taperedrubber rings mounted on steel pins. These rings absorb commonly encounteredmisalignment, shock and vibration. The flexible rings can be changed by removing thepins from the coupling using simple hand tools, and without the need to disturb thedriver or driven machines.

PAGE 25Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Tschan-S coupling is another jaw type coupling that has round legs instead ofstraight or curved. The Tschan-S is ideally suited to general purpose couplingapplications and is capable of reducing shock loads and vibration from drives. Theelement is made of polyurethane that is resistant to oils and has a temperature range

from -30 C up to 100 C. Naismith Engineering stock the elements and hubs to suit.o o

TSCHAN-S

The HRC is a very popular coupling, and many people have them in machines today. Itis a general purpose coupling using an element in compression. They are easy to installand take up small amounts of misalignment while still reducing the shock loads oftenfound at start up. Naismith Engineering stock a full range of HRC couplings in pilotbore and taper bore. Elements are also available

HRC

Page 24: Naismith Engineering Product Guide

The SFS ServoClass couplings are also designed to meet the precision positioningrequirements and high reverse-load characteristics. With higher torque ratings thiscoupling suits larger applications.ServoClass couplings feature zero-backlash flexible metal discs. This high-performancecoupling has high torsional stiffness and low inertia to avoid system resonance. It isremarkably flexible as a result of its double-flex-disc design, which providesexceptional misalignment capacity. Available in single (‘S’), double (‘W’) and spacer(‘G’) type.

SERVOFLEX SFS - Miki Pulley

The Tyre coupling is primarily designed to allow for misalignment both angular andparallel and compensates for end float. Torsional vibration is reduced and shock loadsminimized by the flexing body. The coupling has been successfully subjected, undernormal circumstances, to angular misalignment up to 4º, parallel misalignment up to3mm and end float up to 8mm. The design of the coupling, having a flexing memberwith remarkable durability, suppresses the initial shock load and eliminates to a markeddegree the stresses common to power driven machinery.Tyres available in natural rubber and F.R.A.S.

TYRE COUPLING

ServoClass couplings are specifically designed to meet the precision positioningrequirements and high reverse-load characteristics common to many of today's AC andDC servomotor applications.SFC couplings feature zero-backlash flexible metal discs and zero-backlash ‘keyless’clamp-type mounting hubs. This high-performance coupling has high torsional stiffnessand low inertia to avoid system resonance. It is remarkably flexible as a result of itsdouble-flex-disc design, which provides exceptional misalignment capacity. Thisflexibility reduces reaction loads, thereby extending the operating life of the connectedcomponents while providing smoother system performance.

SERVOFLEX SFC - Miki Pulley

Roller chain couplings have a torque capacity in excess of the torque normallytransmitted by shafting which falls within the coupling bore range. Select the smallestcoupling which will accommodate both shafts. For reversing operation, shock orpulsating loads, or other severe operating conditions, select the next larger coupling.A cover should be used to ensure maximum service life, particularly if the couplingoperates at high speeds or under moist or abrasive conditions. For proper lubrication, fillthe space between the cover and the coupling with soft to medium consistency bearinggrease.

CHAIN COUPLING

COUPLINGS

PAGE 24Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 25: Naismith Engineering Product Guide

PAGE 23Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

COUPLINGS

Schmidt 5-D couplings were developed to fill a gap in the family of torque-rigidcouplings. Most couplings in this family are designed to accommodate either axial,angular, or parallel shaft displacements only. For some applications however, theoperational conditions require all possible shaft misalignments. If these shaftmisalignments exceed the limit of the selected coupling capacity, excess sideloads areintroduced into the equipment which can cause vibrations, life reduction or failure ofvital machine components such as bearings, motors, etc. The 5-D couplings, are amodification of the Schmidt inline coupling, designed to accommodate all 5 degrees ofshaft displacements. This patented coupling allows easy adjustment to any possiblemisaligned shaft position without imposing heavy sideloads on shafts, bearings or othermachine equipment. Schmidt 5-D couplings offer large shaft misalignment capabilitiesand constant angular velocity. The acting forces within the coupling can be preciselycalculated, ensuring a sound coupling design which is especially important for heavy-duty applications.

SCHMIDT L500 COUPLING - Zero-Max

Standard

The principal feature of the Baumann Flex coupling is the multi-layer and multi-coilspring assembly, which is brazed firmly to the end pieces designed either as collars,flanges or hubs. The coupling serves primarily to take up inaccuracies of alignmentbetween two rotating shafts; it provides torsional flexibility in the coupling of suchshafts and dampens vibration. Its effectiveness is largely independent of the direction ofrotation, as in one direction the outer and middle counter-coiled spring layers worktogether to transmit the load, while in the other direction, the middle and inner layerscome into operation.

BAUMANN

LM

ZG

BLS

The LM type couplings have a stainless steel spring and two light alloy hubs which arebored the same at each end. Maximum torque can only be achieved with correctlyaligned shafts. The maximum shaft misalignment is 8°angular and 2mm parallel.

The ZG type coupling comprises a nickel plated steel spring and two cast zinc push-onhubs which are available with metric bores. The maximum shaft misalignment is5°angular and 1mm parallel.

The BLS type coupling is constructed entirely of stainless steel allowing for corrosiveenvironments and ambient temperatures up to 500°C. The maximum shaft misalignmentis 1.5°angular and 0.1mm parallel on the size 15 & 3°angular and 0.2mm parallel on thesize 23.

The CHP type coupling consists of a synthetic rubber bellows and two alloy hubs. Thecoupling is backlash free and torsionally rigid. The maximum shaft misalignment is5°angular and 0.25mm parallel.

CHP

BAUMANN

Page 26: Naismith Engineering Product Guide

PAGE 28Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Hexadrive pulleys are the most durable variable speed pulleys available. The hexagon-shaped center shaft efficiently transmits torque through the six hex flats for topperformance and long life. The surface of the shaft is covered with a resilient elastomer,which means there is no metal-to-metal contact on any sliding surface and lubrication isnot necessary. These pulleys are available in adjustable or fixed center drives and comein two styles: one-side moveable for V-Flat drives, and two-side moveable for V-Vdrives. Flanges are made of cast iron to provide a long-wearing belt contact area. Thesepulleys provide size ranges from 150mm up to 315mm diameter, and a maximum ratingof 18kW at 1,425RPM.

HEXADRIVE - Lovejoy

The variable speed pulley is a well established drive designed to give continuous speedvariation at a comparative low cost. The hub is made from induction hardened steel,hard chrome plated and ground to give uninterrupted slide fit with flanges. Keys are notused with this application. Moving flanges give a wide contact area thereforeeliminating uneven belt pressure. The pulley flanges are coupled by means of nylonsleeve couplings to the outside of the flanges and by two flats machined on each end ofthe pulley hub. Two springs situated inside the nylon coupling give the desired pressure.The pulleys use European standard variable speed belts.There is provision for regreasing the pulley slide ways, although the grease chambersare pre-packed before leaving the factory.

VAR - Sit

Stationary Adjustable Pulleys are designed to allow adjustment of pitch diameters whilestationary. They are suitable for M - SPZ , A - SPA, B - SPB , C - SPC section V-belts.Both one groove and two grooves are constructed in high quality cast iron. One of theflanges has to be screwed on the threaded hub. The movable flange is provided withgrub screws for fixing into required position. It is advisable to grease the hub threadsperiodically. For belt power ratings see our V-belt catalogue.Available in pilot bore and taper bore types.

STATIONARY ADJUSTABLE PULLEY - Sit

In general, fixed center drives provide a greater total speed ratio than adjustable centerdrives. Traditional designs offer two pulleys of the same diameter, which means that alarge portion of the driven speed range will be above motor speed. For thoseapplications that require wide speed range and low driven speed, this has been aproblem. Lovejoy’s Hi-Ratio system solves this problem by mating smaller driver andlarger driven pulleys to provide the unique combination of broader driven speed rangesand lower minimum driven speeds. Ranges from 0.2kW to 3kW at 1,425 RPM motorspeed.

HI-RATIO - Lovejoy

VARIABLE SPEED

Page 27: Naismith Engineering Product Guide

VARIABLESPEED

PAGE 27Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Econoline pulley series provides reliable variable speed service with a provendesign at an economical cost. Consisting of a wide selection of models, the Econolineseries is ideal for both adjustable and fixed center drives using classic ‘A’ and ‘B’section drive belts. This series also offers: driven speed ratios from 1.6 to 1 up to 2.7 to1 and ranges from 0.25kW to 3kW at 1,425 RPM motor speed.

ECONOLINE SERIES - Lovejoy

Aluminoline variable speed pulleys offer the best possible belt alignment with the leastamount of overhung load. Used with ‘A’ and ‘B’ drive belts, these pulleys not only haveanodized aluminium flanges which provide quiet operation with minimum vibration, butare rated for 0.15kW through 1kW at 1,425 RPM. These two-side moveable pulleysoffer greater speed ratios (up to 2.75 to 1).

ALUMINOLINE SERIES - Lovejoy

Pulleys in the WB series use wide variable speed belts for the most efficienttransmission of torque through the widest possible speed range. This two-side moveablepulley series offers the best possible belt alignment when used with a groovedcompanion sheave. WB pulleys provide maximum service when lubricated through aconvenient grease fitting and offer sizes ranging from 150mm to 330mm in diameter,with the largest model capable of 9kW at 1,425RPM. All models greater than 0.75kWfeature durable cast iron flanges. Models 245 and 260 are made with lightweight,corrosion-resistant anodized aluminium flanges.

WB SERIES - Lovejoy

Page 28: Naismith Engineering Product Guide

PAGE 26Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

OVERLOADPROTECTORS

Torq-Tenders are positive drive couplings which provide accurate overload protection inmany mechanical power transmission systems. When a jam-up or excess overloadoccurs, Torq-Tenders disengage motor drives. Their effective, versatile design, protectyour drive train, motor, and entire system. When load exceeds the rating determined byprecision tempered torque springs, the unit's drive key pivots out of a slot to disengagethe coupling. Once the overload is removed and speed reduced, the Torq-Tender resetsitself automatically. All models are available with actuating pins or actuating disc,which will automatically signal an overload warning or shut the machines system downentirely.

TORQUE TENDER - Zero-Max

H-TLC operates on the same basic principle as Torq-Tender, except the torque setting isadjustable and it uses polymer materials in its major components to resist corrosion. Ifoperating conditions require periodic changes in torque settings, the H-TLC gives youthat ability. Simply adjust the units external compression bolts until the desired newsetting is reached. It works on a series of spring loaded convex pins with detents whichreact to overloads. Unlike friction-type designs, you can submerge the H-TLC in oil andstill depend on precise disengagement at your design limits.

H-TLC - Zero-Max

Page 29: Naismith Engineering Product Guide

PAGE 31Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The DCW series pulleys are adjustable centre distance drive type pulleys using variablespeed belts. The range is 0.9kW to 18.3kW at 1,425 RPM. They have double pulley facemovement to maintain belt alignment on V drives and contain Hi-Lo's torque sensingmechanism to control belt tension with load requirement.Two face movable design for variable speed belts. Maintains belt alignment between thevariable speed pulley and the companion sheave. The wider variable speed belts allow agreater speed ratio change than standard V-belts while maintaining a match between theincluded angle of the pulley faces and the belt.

DCW - Hi-Lo

The MCV and MCW series pulleys (manually adjustable) are fixed centre distance drivetype pulleys. The MCV pulleys use standard V-belts and have a range of 0.45kW to3.0kW at 1,425 RPM. The MCW pulleys use variable speed belts and their range is0.6kW to 4.6kW at 1,425 RPM.

MCV & MCW - Hi-Lo

Hi-Ratio compound pulley drives provide economy and exceptional efficiency at speedratios up to 7:1. Pulley faces are made of highly durable plastic containing specialadditives to insure long service life. The Hi-Ratio pulleys have a range of 0.15kW to0.3kW at 1,425 RPM.

HI-RATIO - Hi-Lo

The DCV series pulleys are adjustable center distance drive type pulleys using standardV-belts. The range is 0.61kW to 4.7kW at 1,425 RPM. They have double pulley facemovement to maintain belt alignment on V-drives and contain Hi-Lo's torque sensingmechanism to control belt tension with load requirement.Two face movable design for standard V-belts. Maintains belt alignment between thevariable speed pulley and the companion sheave. This is an important feature with closecentre distance drives. Models 257 and 265 are an exception however, and should userecommended shaft centre distances.

DCV - Hi-Lo

VARIABLE SPEED

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PAGE 30Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

VARIABLE SPEED

The Model ‘L’ is an intermediate wheel type stepless variable-speed drive with standardtype V belt. Speed can be easily changed with lever. (For motors 0.1 kW to 2.2 kW.Speed ratios: 1:2 to 1:4)

MODEL ‘L’ - Miki Pulley

The Model ‘U’ is an intermediate wheel type stepless variable-speed drive with standardtype V belt. Speed ratio is large and speed can be easily changed with handle. (Formotors 0.4 kW to 2.2 kW. Speed ratios: 1:3 to 1:6)

MODEL ‘U’ - Miki Pulley

The Model ‘AK’ and ‘PE’ employ a wide variable speed belt. They are a non-lubrication type stepless variable speed drive capable of changing drive speed withoutvarying the distance between shafts. (Can be used for various models of motor ranging0.2 kW to 37 kW. A large speed change ratio of 1:4 can be obtained.) Variable speedpulley Model AK is manually adjustable and provided with a hand wheel. Model PE,the driven pulley is spring loaded. Speed change can be made easily. Drive speed can beincreased by turning the hand wheel counterclockwise and decreased by reversing it.Mount Model AK on motor shaft and Model PE on driven side.

MODEL ‘AK’ and ‘PE’ - Miki Pulley

The TBR series of pulleys are adjustable centre distance drive pulleys using standard V-belts. The range is 0.45kW to 3kW at 1,425 RPM. They have single face movement toprovide greater economy on longer centre distance V-drives where absolute beltalignment is not critical. Their through bore construction allows mounting from eitherend. Hi-Lo's torque sensing mechanism controls belt tension with load requirementOne face movable design provides a simplified, economical and trouble free drivesystem. While belt misalignment is inherent, it is minimal using standard V-belts. Thedrive should be aligned with the belt at the mean diameter of the variable pulley and therecommended shaft centre distance used as a minimum.

TBR - Hi-Lo

Page 31: Naismith Engineering Product Guide

PAGE 29Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

The Model ‘AP’ is a variable speed drive used in combination with Model ‘P.’ It iscapable of changing drive speed without varying the distance between shafts. Employs aV-belt, and an adaptor for ease of mounting. (For motors 0.2 kW to 7.5 kW, speed ratiosto 1:2)

MODEL ‘AP’ - Miki Pulley

The Model ‘PL’ is usually mounted on a motor shaft, and speed is changed by adjustingthe distance between shafts. Speed change ratio is large though it uses a standard V-belt.(For motors 0.1 kW to 1.5 kW, speed ratios to 1:2.4)

MODEL ‘PL’ - Miki Pulley

The Model ‘PK’ is a one-side movable type variable speed pulley. It is to be used with awide belt and mounted on a motor shaft. Drive speed is changed by varying the distancebetween shafts. Wide speed change ratio and high transmission capacity. (For motors0.4 kW to 8.5 kW speed ratios to l:3)

MODEL ‘PK’ - Miki Pulley

This is a universally used type of pulley. It is usually mounted on a motor shaft, andspeed is changed by adjusting the distance between shafts. A standard V-belt is used,with a tapered adapter for ease of mounting. An internal cam is used on model P. (Formotors 0.2 kW to 2.2 kW, speed ratios to 1:1.5.)

MODEL ‘P’ - Miki Pulley

Page 32: Naismith Engineering Product Guide

Consists of two conical pieces and a spacer. It has minimum overall dimensions invirtue of the reduced thickness of the cones; so, TLK110 is suitable for the applicationswhere small hubs are used. It is recommended for medium to high torques and is self-centering. TLK110 guarantees a very precise axial positioning, as no axial displacementof the hub occurs during the assembly operation. Available for shaft diameters from 6 to130 mm.

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for high torques and is self-centering. Applications which require a veryprecise axial positioning are not recommended, owing to a small axial displacement ofthe hub during the assembly operation. Available for shaft diameters from 18 to 220mm.

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for high torques and is self-centering. Applications which require a veryprecise axial positioning are recommended, owing to no axial displacement of the hubduring the assembly operation. Available for shaft diameters from 18 to 220 mm.

TLK110 (self-centering) - Tollok

TLK130 (self-centering) - Tollok

TLK131 (self-centering) - Tollok

PAGE 34Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

LOCKINGBUSHES

Page 33: Naismith Engineering Product Guide

PAGE 33Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

VARIABLE SPEED

Zero-Max drives are mechanical adjustable speed drives. Five sizes provide constant

torque of 1.3Nm to 22.5Nm (12 lbs to 200 lbs) throughout the speed range. The speedrange is infinitely adjustable from 0 to 1/4 of the input speed under full rated load . Thisis generally stated as 0-320 RPM under full rated load assuming an input of 1440 RPM.For lower speed/higher torque applications, some Zero-Max drives are available within-line or right angle gearheads. They may be connected to any rotating power source upto 2000 RPM.Speed adjustments are easily made by moving a lever control through an arc or turningthe handwheel of a screw type control. In either case, precise speed control settings arepossible.

” ”

ZERO-MAX DRIVE

Page 34: Naismith Engineering Product Guide

PAGE 32Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

VARIABLE SPEED

It is necessary to change the distance between the motor and driven shaft in order to change speed with an adjustable center drive. The best way to do this is with an adjustable motor base. Lovejoy motor bases are designed to fit NEMA motor frames. Lovejoy offers four basic types of motor bases to satisfy requirements of space, convenience, interchange-ability, motor frame size, and economy.

MOTOR BASE - Lovejoy

COMPANION SHEAVE - LovejoyLovejoy companion sheaves are made of durable cast iron to ensure best possible wear at the belt contact area. Grooved sheaves, for use with variable speed adjustable centre drives, are machined to match the belt width and angle of standard variable speed belts for optimum efficiency. Flat companion sheaves also available. The spoked design provides strength and light weight. All companion sheaves are precision balanced for smooth running. The sheaves are bored to accept standard QD type tapered bushings for ease of installation, best possible shaft grip and removal from the shaft without damage to any of the parts.

MOTOR BASE

The "COMPATTA" and "VAREX" motor bases can be employed in various fields for complete satisfaction of the user. Very solid, long life and precision in performance, even in critical working conditions, are their main characteristics. The simple and functional design is suitable and reliable for every sort of application and allows quick tensioning adjustment avoiding modifications in the transmission components alignment. SIT S.p.A. motor bases are designed to fit metric motor frames.

SLIDE RAIL

This new range of universal slide rails "LINEA" (made of galvanized steel) allows the mounting and adjustment of all types of electric motors in almost all positions. The very strong construction of the "LINEA" slide rails and the special fixing elements allow all types of combinations by the positioning of the adjusting threaded elements.

MOTORBASE & SLIDE RAIL- SIT S.p.A.

Lovejoy variable speed belts are designed for long life, even tracking, smooth running, and efficient transmission of power through wide speed ranges. They are made of special synthetic compounds to provide maximum service in conditions where oil, heat

o(up to 93 C), and static are present. Maximum recommended belt speed is 5,600 feet per minute.

VARIABLE SPEED BELT - Lovejoy

1422V1922V2322V

2926V3230HV4430V

Sizes Available

Page 35: Naismith Engineering Product Guide

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for medium to high torques and is self-centering. The TLK350 is a very smalland light weight design. Applications which require a very precise axial positioning arenot recommended, owing to a small axial displacement of the hub during the assemblyoperation. Available for shaft diameters from 6 to 50 mm.

TLK350 (self-centering) - Tollok

TLK500 (rigid coupling) - Tollok

TLK603 (shrink disc) - Tollok

Consists of two biconic rings and two truncated cone rings. It is suitable for very hightorques and is self-centering. Ideal for conveyors and many other machine applications.Available for shaft diameter from 25 to 400 mm.

TLK450 (self-centering) - Tollok

Consists of one inside and two outside cone rings, which are joined by a set of screws.This locking device is designed as a rigid coupling to join the shafts of the same size.TLK500 is also available to suit shafts of different sizes on request. Available for shaftdiameters from 16 to 80 mm.

Consists of one inside and two outside cone rings, which are joined by a set of screws. Itis suitable for medium high torques. TLK603 locking bush is used for clamping ahollow shaft to a standard shaft. Available for hollow shaft diameters from 14 to 480mm.

LOCKING BUSHES

PAGE 37Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 36: Naismith Engineering Product Guide

LOCKING BUSHES

Cone clamping unit consists of four pieces with two inside double-cone rings joinedthrough a set of tightening screws. It is recommended for medium to high torques andalthough it is not self-centering, it can be easily assembled and disassembled. Availablefor shaft diameters from 20 to 900 mm.

TLK200 (not self-centering) - Tollok

TLK250.L (self-centering) - Tollok

PAGE 36

TLK300 (not self-centering) - Tollok

Consists of two cone rings, joined through a lock nut and a tab washer. In virtue of thesimple design, very fast assembly/disassembly is possible. TLK250 is suitable forapplications with medium to low torques.Available for shaft diameters from 14 to 70 mm.

TLK250 (not self-centering) - Tollok

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Consists of two cone rings, joined through a lock nut and a tab washer. In virtue of thesimple design, very fast assembly/disassembly is possible. TLK250L is suitable forapplications with medium to low torques. TLK250L is very similar to the standardTLK250, but is manufactured in a longer execution. Available for shaft diameters from14 to 60 mm.

Consists of two cone rings and must be equipped with a fastening flange, usuallymanufactured by the customer. The number of locking screws depends on the torque tobe transmitted. It is not self-centering. TLK300 requires very small axial installationdimensions. Up to 4 units can be arranged behind each other, allowing high torques tobe transmitted. Available for shaft diameters from 6 - 540 mm.

Page 37: Naismith Engineering Product Guide

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for medium to high torques and is self-centering. Applications which requirea very precise axial positioning are not recommended, owing to a small axialdisplacement of the hub during the assembly operation. Available for shaft diametersfrom 18 to 220 mm.

TLK132 (self-centering) - Tollok

TLK134 (self-centering) - Tollok

TLK139 (self-centering) - Tollok

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for medium to high torques and is self-centering. Applications which requirea very precise axial positioning are not recommended, owing to a small axialdisplacement of the hub during the assembly operation. Available for shaft diametersfrom 18 to 220 mm.

TLK133 (self-centering) - Tollok

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for medium torques and is self-centering. Applications which require a veryprecise axial positioning are recommended. Available for shaft diameters from14 to 50 mm.

Consists of one inside and one outside cone ring, which are joined by a set of screws. Itis suitable for medium to low torques and is self-centering. Available for shaft diametersfrom 18 to 90 mm.

LOCKING BUSHES

PAGE 35Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 38: Naismith Engineering Product Guide

PAGE 40Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Clamp style collars with threaded bores are also available. Threaded collarsprovide axial holding power superior to smooth bore collars, while offeringeasier installation and adjustment than solid ring locking devices.

1 PIECE SPLIT THREADED - Ruland

Clamp style collars with threaded bores are also available. Threaded collarsprovide axial holding power superior to smooth bore collars, while offeringeasier installation and adjustment than solid ring locking devices.

2 PIECE SPLIT THREADED - Ruland

Ruland’s double width collars are available in one and two piece clamp designs in steeland stainless steel. Clamp style collars wrap around the shaft, providing high torsionalholding power without the shaft damage and fretting that occurs when set screw stylecollars are used. Two-piece clamp styles also allow for disassembly and maintenancewithout removal of other machine components and feature opposing hardware for abalanced design.

DOUBLE WIDTH - Ruland

SHAFT COLLARS

Materials:

- Steel Black Oxide- Stainless Steel

Materials:

- Steel Black Oxide- Stainless Steel

Page 39: Naismith Engineering Product Guide

SHAFTCOLLARS

PAGE 39Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Set screw collars are most effective when used on a shaft made of a materialthat is softer than the set screw. Ruland set screw collars are furnishedexclusively with forged socket set screws for greater torque capacity andimproved holding power. Forging of the stainless steel set screws has theadditional benefit of work hardening, which results in stainless steel withelevated hardness and performance.

1 PIECE SOLID - Ruland

One-piece clamp style collars wrap around the shaft for even greater distributionof clamping forces. This results in a tight fit and greater holding power, withoutthe shaft damage caused by set screws. Ruland uses carefully selected materialsand proprietary processes to ensure that the clamping gap remains open forsimpler and more precise adjustment.

1 PIECE SPLIT - Ruland

Two-piece clamp style collars offer the same benefits of the one-piececollars with additional versatility and convenience. They are easilydisassembled, reducing labour and downtime when adjustment, removal orreplacement is necessary. Ruland keeps both halves of its two-piece collarstogether throughout the manufacturing process to assure a perfect match forproper fit, holding power and alignment.

2 PIECE SPLIT - Ruland

Materials:

- Steel Black Oxide- Aluminium- Stainless Steel- Acetal

Materials:

- Steel Black Oxide- Steel Zinc Plated- Aluminium- Stainless Steel- Acetal

Materials:

- Steel Black Oxide- Steel Zinc Plated- Aluminium- Stainless Steel- Acetal

Page 40: Naismith Engineering Product Guide

Weld on hubs are available to suit most taper bushes. These are commonly used onconveyor drums. The may also be welded to plate sprockets to make taper boredsprockets in our own factory.

LOCKING BUSHES

TAPER LOCKING BUSH

PAGE 38

WELD ON HUB

Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

1008110812101215

3020303035354040

45455050

1610161520122517

Sizes Available

The Taper Bush is designed to give rapid assembly and dismantling of the pulley andother transmission equipment with no special tool requirement except hexagonal key.The large range of finished bores available ensures that an immediate assembly can bemade thus avoiding costly factory down-time. The bushes are machined with keywaysin accordance with British Standard specifications. This is in addition to clampingscrews which, in many cases, are sufficient to meet the required torque. Fastening bytaper bushes allows the removal of any clearance between hub and bore so that frettingcorrosion is eliminated.

The taper-bored "QD" item easily fits over the tapered bush and tightening of the capscrews produces a tight fit on the shaft. The bush is easily removed from the hub byusing the pull-up bolts as jack screws. Sizes available include QH, JA, SH, SDS, SD,SK, SF, E, F. All bushes are available in pilot bore, and can be re bored to suit the shaftrequirements. All bushes "JA" through "F” are drilled for reverse mounting.

QD TYPE BUSH - Lovejoy

Page 41: Naismith Engineering Product Guide

These single speed transmissions consist of a planetary set up driven by a sun gear. There are two reaction clutch bands within the housings. When either one is clamped down by the force of the cam, forward or reverse will then be engaged. The unique dual clutch design allows for instant shift on the fly direction control from forward to reverse, even under a full load, since the input and output shafts are always in constant mesh with each other. The rugged design provides for a prolonged life even in the harshest applications.

HOT-SHIFT - Snow Nabsted

Tol-O-Matic's Float-A-Shaft "floats" on rotating shafts. No other design has the versatility, durability, safety, or the ease of operation as the Float-A-Shaft.Float-A-Shaft is a universal right angle gear drive coupling. It consists of two 45° helical gears that mesh at right angles, designed to turn power around any corner. Float-A-Shaft can be operated in either direction and can slide axially along the drive or driven shaft. A lightweight aluminium housing encloses the gears, serving as a structural support and a lubricant reservoir. The gears mount directly on the shafts through keyways in the gears and shafts. These rugged and durable hardened helical gears have been field-proven for over 35 years, assuring dependable operation. Float-A-Shaft's unique floating design maintains perfect alignment. It also eliminates dangerous chain sprocket drives and the additional adjustments required for chain drive applications.Float-A-Shafts are available in either a low torque journal bearing series or a high torque sealed roller bearing series. Maximum speed on these units is 500RPM

FLOAT-A-SHAFT - Tol-O-Matic

The Slide-Rite™, like the classic Float-A-Shaft, is a universal right angle gearbox. It consists of two 45° helical gears that mesh at right angles, designed to turn power around any corner. The Slide-Rite™ gearbox can be operated in either direction and can slide axially along the drive or driven shaft. Its unique floating design maintains perfect shaft alignment allowing for easy installation. A solid one-piece aluminium housing seals the gears from outside contaminates, providing for smooth operation in even the harshest industrial environments.The CR model is the latest in the Slide Right™ range. It is corrosion resistant with all components being made of aluminium, stainless steel or nickle plated steel.

SLIDE-RITE - Tol-O-Matic

GEARBOXES

&TIMING DEVICES

PAGE 43Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 42: Naismith Engineering Product Guide

CLUTCHES & BRAKES

Electromagnetic clutch, thin and space-saving, combining flange-mounted stator andvariety of armature assemblies. Used for coupling/releasing,speed change, forward/ reverse operation, high frequency operation, indexing, inching,cushioned start/stop, over-load protection, etc.

Operates on 24v D.C.

CLUTCH Type 101 &102 - Miki Pulley

Electromagnetic clutch, easy-to-install, combination of bearing-mounted stator andvariety of armature assemblies. Used for coupling/releasing,speed change, forward/reverse operation, high frequency operation, indexing, inching,cushioned start, overload protection, etc.

Operates on 24v D.C.

CLUTCH Type CS - Miki Pulley

Type 125

Type 121

Combination electromagnetic clutch/brake and split-shaft mechanism enclosed in lightalloy housing. Used for starting/stopping, high frequencyoperation, positioning/indexing, inching, etc.

Combination open type electromagnetic clutch and brake mounted on through-shaft.Used for starting/stopping, high frequency operation, positioning,

indexing, inching, etc.

Operates on 24v D.C.

Operates on 24v D.C.

CLUTCH/BRAKE - Miki Pulley

Electromagnetic brake, light weight, space-saving, combination of thin stator andvariety of armature assemblies incorporating patented brake armature. Operates on 24vD.C. Used for braking/holding, high frequency operation, positioning, inching,cushioned stop, etc.

BRAKE Type 111 & 112 - Miki Pulley

PAGE 42Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 43: Naismith Engineering Product Guide

Tol-O-Matic offers both industrial and vehicular lines of Caliper Disc Brakes with over400 models to choose from. Caliper Disc Brake products include Pneumatic Brakes,Hydraulic Brakes, Hydraulic/Mechanical Brakes, Mechanical Brakes & Spring AppliedBrakes. Disc are also available.Tol-O-Matic caliper disc brakes put a stop to your problems, providing maximumperformance and product longevity.The Tol-O-Matic vehicular brake line includes hydraulic, dual function, mechanical orspring applied caliper models that will fill a wide variety of vehicular and off-highwayapplications.

BRAKE - Tol-O-Matic

Tol-O-Matic offers two different types of clutches.

The Adam Clutch has a higher heat dissipation, greater torque and better response timesthan any other clutch in its class, and may very well be the most versatile clutchavailable on the market today. The parallel disc-plate design provides fast starts (but softwhere needed) while the finned, cast-iron plate on 400, 600 and 800 series modelsquickly dissipates heat generated. Unlike other disc-plate clutches in high cyclicapplications, the Adam Clutch also includes innovative servicing features designed tosave you time and effort. Features like quick-change non-asbestos friction material forfast, easy replacement without dismounting and dismantling the clutch.

The Disc-Cone Clutch, developed by Tol-O-Matic engineers more than 20 years ago, isthe only cone clutch in the industry. In this unique design, the cone, attached to the pilot,engages a cup member for immediate, positive engagement with no slippage. The 1300series offers high torque in a space saving design. The 1200 series has a cast iron, heatdissipating finned plate capacity which gives it almost 10 times the heat dissipation ofthe comparable 1300 series model.

ADAM CLUTCH

DISC CONE CLUTCH

CLUTCH - Tol-O-Matic

BRAKES& CLUTCHES

PAGE 41Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 44: Naismith Engineering Product Guide

Introduced over 40 years ago as the first rodless cylinder, the Tol-O-Matic cablecylinder provides reliable linear motion with space and cost-savings features. Its simpleyet efficient design, solves a wide variety of application requirements. Unlike rodcylinders, the cable cylinder's stroke is contained within the cylinder itself and that canbe a big advantage when space limitations are a consideration. The cable cylinder alsoallows equal force to be applied in both directions. Cables (fastened to both ends of thepiston) pass through gland seals at the ends of the cylinder tube, go around pulleys andare then joined by a load bracket or clevis. The cables can be cut different lengths,threaded through a machine or wrapped around a drum to fill a wide variety of rotaryand/or linear motion requirements. First in the industry to offer an automatic tensioningcylinder and combine it with a caliper disc brake for mid-stroke positioning.Tol-O-Matic also offers reed switch options on most cylinder models.

CABLE CYLINDER - Tol-O-Matic

With its introduction of the cable cylinder in 1955, Tol-O-Matic became the firstmanufacturer to introduce rodless cylinders into the U.S. marketplace. Today,Tol-O-Matic is the largest U.S. manufacturer of cable and band-type cylinders and theonly manufacturer to offer all three types of band cylinder BC2™ series, BC3™ series& BC4™ series. All Tol-O-Matic rodless actuators are hardworking, space-savingdesigns that offer cost-effective automation solutions for unlimited application

requirements. The expanded range of BC4™ cylinders now go to 2.1/2 bores withthrust up to 540kg.

BAND CYLINDER - Tol-O-Matic

Tol-O-Matic's full line of prepackaged low-profile rod cylinder slides provides highperformance in cost-effective packages. This line covers the broadest offering in theindustry providing low cost, with the ability to incorporate several actuators usingadaptor plates for X-Y or X-Y-Z applications. Flexible mounting features on each styleallow easy integration into new or existing applications. Three different types of rodcylinder slides are available:- RCS™, Power-Block™, & Power-Block2™ ranging from3/8" to 3.1/4" bore sizes.

ROD CYLINDER - Tol-O-Matic

LINEARACTUATORS

PAGE 46Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 45: Naismith Engineering Product Guide

The Candy Timing Hub is the low-cost positioner used to positively lock gears,sprockets, cams and levers to shafts while still providing full adjustable timing control.This precision timing hub allows the use of low-cost plate sprockets and hubless gears,and eliminates the cost of machining special slots or clamps often used for timingadjustment. These savings and the low-cost of the hub, clearly show that the CandyTiming Hub is the most economical way to provide positive and accurate positioningcontrol.

TIMING HUB - Candy Controls

The Phasing Hub is a static phase adjusting coupling designed for precise angulardisplacements. When in motion, the phasing hub operates as a rigid 1:1 shaft coupling.Phase change of the coupling and connected shafts is accomplished with the drivestopped. By manually turning the adjusting ring, the phasing hub becomes a phasechanging device providing infinitely variable and stepless phase correction in eitherdirection. One rotation of the adjusting ring results in 3.6 degrees of adjustment.

PHASING HUB - Candy Controls

The Candy Switch is used by thousands of equipment manufacturers and users world-wide to control circuits during a machine cycle. This Candy Switch can vary the"on-off" time cycle as well as the length of "on" dwell time. Each electronicallycontrolled machine component can be synchronized to the demands of the parentmachine without specifically designed cams or expensive electronic devices. Underaverage conditions, the Candy Switch mechanism should operate satisfactorily over 100million cycles at 100 RPM. In most individual applications, it is inherently moreaccurate than the machine driving it. Adjustable while running.

CANDY SWITCH - Candy Controls

GEARBOXES & TIMING DEVICES

The Candy Positioner, POSI series, is a phase shifting mechanism used to accuratelyadjust and "fine tune" the timing relationship of machine actions. In normal operation,the positioner is a 1:1 phase transmission with input and output shafts rotating in thesame direction. When the control shaft is rotated, a differential action occurs betweenthe input and output shafts. This adjustment may occur while the machine is in the staticposition or while running. By providing "on the fly control", the positioner eliminatescostly downtime associated with production set-ups and changeovers.

POSITIONER - Candy Controls

PAGE 45Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 46: Naismith Engineering Product Guide

GEARBOXES & TIMING DEVICES

The Candy Controls harmonic drive HDD & HDDX series differentials are infinitelyadjustable in either direction while running, and use the familiar harmonic drivecomponents. Contained in a lightweight aluminium housing with corrosion resistantstainless steel shafts, the HDD/HDDX is ideal for directly mounting to the end of a rollshaft to provide static or dynamic phase or speed adjustment.

HARMONIC DIFFERENTIAL - Candy Controls

The Candy Differential is a precision timing mechanism used to advance or retardtiming of mechanical actions. Installed in the drive train of the component to becontrolled, these timing differentials may be manually or motor adjusted while runningor stopped.

• Infinitely adjustable• Rotary positioners• Adjustable while running or stopped• 1 to 1 ratio input to output

DIFFERENTIAL - Candy Controls

Crown right angle gear drives are compact, reliable spiral bevel gear drives designed fora dependable, economical transfer of speed or power.These drives are constructed of high quality materials to help ensure maximum servicelife with a minimum of maintenance. They are compact and sealed from outsidecontaminants to provide smooth, quiet operation, even in harsh industrial environments.Crown right angle gear drives are available in numerous standard models which includetwo and three-way versions and in 1:1 and 2:1 speed ratios. Standard Crown models aredesigned to meet a wide range of torque and shaft speed requirements.Special units can be designed to your specifications with shaft extensions, specialmachining of shafts or case modifications.

CROWN GEAR DRIVE - Zero-Max

Winsmith specialize in meeting your power transmission needs - whether it's a customengineered solution or one of our 13 million standard units, our engineering team canrespond quickly with a successful solution. Since 1901 Winsmith has beenmanufacturing quality speed reducers and has built a reputation for engineeringexcellence with a commitment to quality, service, and technological innovation.Winsmith offer the broadest line of standard and modified worm gear speed reducersavailable to industry, as well as other standard and custom gear drive products. The fullline of products manufactured by Winsmith includes: single enveloping worm gears,double enveloping worm gears, planetary gearing, helical gears, and spur gears, all in awide range of standard and custom engineered products.

WINSMITH

PAGE 44Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH

Page 47: Naismith Engineering Product Guide

www.naismith.com.au

A.C.N. 004 284 388

149 Heidelberg Road

Northcote

Vic 3070

A.B.N.25 004 284 388

Ph (03) 9489-9811

Fax (03) 9482-1474

www.naismith.com.au

[email protected]

Naismith Engineering & Manufacturing Co. Pty. Ltd.Naismith Engineering & Manufacturing Co. Pty. Ltd.

Catalogues Available For Download FromCatalogues Available For Download From

Catalogues Available In HardcopyCatalogues Available In Hardcopy

Price List

Product Guide

Timing Pulleys & Belts

D.O.M. Tensioners

Nenco Nenflex Couplings

Locking Bushes & Shaft Collars

Sprockets & Chain

Couplings

Poly V Pulleys, V-Pulleys and Belts

Price List

Product Guide

Timing Pulleys & Belts

D.O.M. Tensioners

Nenco Nenflex Couplings

Locking Bushes and Shaft Collars

Poly V Pulleys, V-Pulleys & Belts

2005

Distributor network throughout Australia and New Zealand

Page 48: Naismith Engineering Product Guide

LINEAR ACTUATORS

The Roh'lix Linear Actuator is a device that converts rotary motion into linear motion.The Roh'lix uses rolling element ball bearings that trace a helix pattern along the shaft,which produces a Rolling Helix, or Roh'lix for short. Available sizes have thrustcapacities ranging from 67 to 889 Newtons and 15 to 200 lbs, shaft diameters ranging

from 8mm to 50mm and 3/8 to 2 , and leads ranging from 0.625mm to 150mm and

0.025 to 6.00 .The Roh'lix Linear Actuator consists of six pre-loaded bearings that contact the shaft atan angle. When the shaft is rotated, the bearings trace out an imaginary screw thread,causing the Roh'lix to travel linearly along the shaft.The thrust of the Roh'lix is established by spring force between the two block halves.The thrust force is adjusted by the thrust adjustment screws on the top of the block,allowing the thrust setting to be fine-tuned to individual applications.

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ROH'LIX - Zero-Max

PAGE 47Engineering &

Manufacturing Co. Pty. Ltd.NAISMITH