overload protection and safety devicestsubaki.ca/pdf/library/l14007_safcon_revised.pdf ·...
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Overload Protection and Safety Devices Protecting Your Equipment, Protecting Your Investment
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SAFCON
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YOU PROTECT WHAT YOU VALUE
Protect Cutter
Protect Roller
Protect Conveyor
Protect Machine
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INTR
O
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Tsubaki®: The choice for overload protection and safety
The truth is, any machine can break.
Of this we can be sure: Eventually something always happens. And
there’s no predicting. It’s almost a law of nature.
We often learn the hard way: Protection is smart. It saves money. It
saves time. In today’s environment of cost cutting and just in time
delivery, being prepared is just good business sense.
Unintended load changes in the workplace can have big consequences.
As equipment becomes more integrated, a shock or jam in one part of
the production layout can snowball into a complete system shutdown
— damaging equipment and losing product.
It doesn’t have to happen.
Tsubaki’s SAFCON® family of overload and protection devices offer a
solution to fit every need and keep you productive all day, every day,
without interruption, so you can get your product out the door.
Tsubaki offers not only the finest parts in the industry for your
equipment, it also offers protection for those parts and the machinery
they belong to. Our SAFCON® family – Shock Relay, Shock Guard,
Torque Limiter, and Axial Guard – covers the whole range of needs.
One-stop shopping.
You protect what you value. You use seat belts. You have a sump
pump in your basement. You wear a helmet when you cycle. Not
because things happen everyday, but because they CAN happen.
Are you protecting your equipment?
1
SHOCK RELAY
SHOCK GUARD
TORQUE LIMITER
AXIAL GUARD
0.00
SAFCON®
SHO
CK R
ELAY
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Tsubaki®: The choice for overload protection and safety
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Shock Relay Pioneered by Tsubaki, the Shock Relay protects your equipment
against unexpected shock loads, overloads, and underloads
before damage occurs. Shock Relay protects the mechanical parts
of your equipment by monitoring the current on your motor and
shutting it down when the motor works too hard for too long.
Advantages to you:
Back to work with the press of a button
No parts to replace
Precision adjustment and setting
Little potential for nuisance trips
Monitors and protects equipment from up to 1,000 feet away
The Shock Relay adapts to virtually any kind of equipment that’s
driven by an electric motor and is used in applications in a broad
variety of industries, including:
INDUSTRY APPLICATION
Material handling Conveyors, turntables, elevators
Water treatment plants Pumps, scrappers, water screens
Food machineryScrew and belt conveyors, bucket elevators
Machine tool Tapping machines, drill presses
Chemical Pumps, agitators, filters
We’ve thought of everything.The Shock Relay knows when the motor driving your operation is
working too hard. It’s simple: you set the load current so Shock
Relay knows where your motor should be operating. And it
knows, too, when a surge is dangerous because you determine
the time of an acceptable momentary surge, allowing Shock
Relay to ignore small variations. Your adjustment of the start time
setting prevents the Shock Relay from engaging during start up
when the current draw of a motor is greater than the running
current.
Unlike mechanical devices like the Shear Pin Sprocket, which
requires downtime to fix, U.S. Tsubaki’s Shock Relay resets at the
press of a button. That’s it.
Sample Wiring Configuration
No advanced knowledge of electronics is necessary.
Motor size does not determine cost. Bigger motors don’t require a more
expensive Shock Relay.
UL Certification
RoHS Compliant
Shock Relay accepts single and three-phase motors up to 600 volts.
Operating Power 24-240 VAC/DC
Shock Relay selection is simple; it is based on the motor amperage of your machinery.
Shock Relay has an unlimited life - it does not wear out.
Adding the Tsubaki Shock Relay to your existing Start/Stop
circuit is easy. Generally, no advanced knowledge of electronics
is necessary. Just a few wires and a few adjustments quickly can
result in less down time and lower maintenance costs.
The Shock Relay protects your mechanical components.
Thermal relays and Inverters do not, their purpose is different,
their protection is different. Using the correct tool saves time
and money.
In the past, heavy loads and hard-working equipment required
large shear pins and bulky safety devices. Tsubaki has changed
the equation. Bigger motors do not equal a more expensive
Shock Relay. Simple, reliable, user-friendly.
SAFCON®
SHO
CK R
ELAY
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Tsubaki®: The choice for overload protection and safety
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TSBSB SERIES2.44H x 2.13W x 2.60D
The most popular model for overload protection. Has
a built-in reset button, test button or automatic reset.
Unit has UL/cUL Certification, CE marking and is RoHS
compliant.
TSB150 SERIES 4.5H x 4.9W x 4.33D
The original Shock Relay with self-holding circuit and
analog meter. Four series available: Standard Overload,
Pre-Alarm notification, Impact detection, Over and
Underload protection.
TSB50 Automatic reset with fixed start-time to accommodate
motor in-rush current. Dual output contacts allow many
wiring options. Two-piece construction aids fitting into
crowded panels.
2.75H x 2.36W x 3.07D
TSBSM SERIES2.96H x 2.16W x 3.03D
MODEL SIZE AMPERAGE
RANGE
START TIME
RANGE
SHOCK TIME
RANGE
OUTPUT
CONTACT
RATING
MOUNTING
TSB150 151 0.3 ~ 16A 0.2 ~ 20s 0.2 ~ 3s 0.2A,
250VAC
Two components, both surface mount152-100 10 ~ 100A
Std, A, M, and
W styles
152-200 60 ~ 200A
152-300 90 ~ 300A
152-400 120 ~ 400A
TSBSB 05 0.5 ~ 6A 0.2 ~ 10s
0.2 ~ 10s
0.2 ~ 10s
0.2 ~ 5s
0.2 ~ 5s
0.2 ~ 5s
3A, 250VAC
3A, 250VAC
3A, 250VAC
35mm DIN or surface mount
10
30
1 ~ 12A
3 ~ 30A
60 5 ~ 60A
100 10 ~ 100A TSBSB05 plus surface mount transformer200 20 ~ 200A
300 30 ~ 300A
TSB50 0.4 ~ 16A 3s fixed 0.3 ~ 3s 0.1A,
250VAC
Two components, both surface mount
TSBSM 02 0.5 ~ 2A 1.5s fixed 1.0s fixed 3A, 250VAC Surface mount
Setup is typically easiest when the max amperage of the Shock Relay is close to the motor amperage.
TSBED SERIES2.77H x 2.20W x 3.04D
Designed to work with inverters. Digital display. Built-
in tamper-proof cover and built-in test button. Choose
between self-holding output relay and automatic reset.
Compact, all-in-one, and economically priced. Limited
features but perfect for the OEM customer. Special MTO
amperages available.
TSBED 020 0.2 ~ 2.4A 0.2 ~ 10s 0.2 ~ 5.0s 3A, 250VAC 35mm DIN or surface
mount075 1.2 ~ 5.8A
220 3.0 ~ 14A
550 6.0 ~ 34A
0.00
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Tsubaki®: The choice for overload protection and safety
Shock Guard Tsubaki’s Shock Guard is a ball and detent mechanical device
that offers enhanced precision over other mechanical devices.
Bearing the brunt of the load when tripped, the Shock Guard
reacts instantly to save equipment and product. The Shock
Guard’s one-position design allows each ball to return to its
unique location when it resets so that your equipment resumes
its work exactly where it was before the jam or overload.
Advantages over other devices:
Instant and complete disengagement
Accurate and consistent torque setting Automatic re-engagement limits downtime and need for maintenance worker to switch tasks
Externally adjustable trip torque speed installation and setup
Backlash free operation
The Shock Guard is ideal in a wide range of settings and is
especially suited for more sophisticated applications that may
be prone to jams. Users require a consistent and predictable trip
point with quick resetting so that production is maintained and
each line stays in sync with where it left off.
Shock Guard is easy to set and adjust with its built-in meter
and indicator having distinct torque setting points for easy
verification. The asymmetrical arrangement of balls and pockets
allows for same-position resetting. Once the jam or overload is
removed, Shock Guard reengages automatically by jogging the
outer drive hub. Tsubaki offers a series of four categories of
Shock Guard to support all your protection needs.
INDUSTRY APPLICATION
Transport Conveyors, turntables, elevators
Pumping Pumps, agitators, filters
Plastic processingScrew and belt conveyors, bucket elevators
Metal working Tapping machines, drill presses
Environmental Water gate, water screen
PackagingBag making, cartoning, vacuum packing
Food processing Noodle making, flour mill
TGB SERIES An economical choice for general use. The TGB series can be
used with almost any machine. Offers automatic resetting,
easy-to-read torque indicator, and no backlash.
TGM SERIES The gasket and O-ring sealed construction in the TGM series is
unique. Excels in wet, dusty, and oily applications. Designed for
long life, tough environments.
TGX SERIES A high-precision option, the TGX series features no backlash
and unsurpassed operation rigidity. Ideal for machines that
require accurate positioning.
TGZ SERIES A release-type protection device, the TGZ series offers
on-off clutch capability. Its simple and straightforward
adjustments make it easy to use.
Manual disengagement feature assists with machine maintenance.
High speed or low speed service, bi-directional rotation.
Disengages at a pre-set torque rating. Protects your equipment against the unexpected.
Quick and easy reset.
Shock Guard Series
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Tsubaki®: The choice for overload protection and safety
MODELTORQUE RANGE
(FT. - LBS.)MAXIMUM
RPMROUGH STOCK
BORE
MAXIMUM BORE
DIAMETERA E F (P.C.D.) G WT (LBS.)
TGB08-L 0.2 ~ 1.1
1200 0.20 0.31 1.54 1.575 1.339 1.02 0.3TGB08-M 0.6 ~ 1.6
TGB08-H 0.9 ~ 2.2
TGB12-L 0.5 ~ 2.2
1000 0.24 0.47 1.85 1.890 1.575 1.26 0.5TGB12-M 1.4 ~ 3.6
TGB12-H 2.2 ~ 4.3
TGB16-L 1.1 ~ 3.6
900 0.28 0.63 2.20 2.283 1.969 1.54 1.0TGB16-M 2.2 ~ 5.8
TGB16-H 4.3 ~ 8.7
TGB20-H 7.0 ~ 33 700 0.31 0.79 1.85 3.543 3.071 2.44 2.0
TGB30-L 14 ~ 40500 0.47 1.18 2.36 4.449 3.937 3.23 4.4
TGB30-H 39 ~ 123
TGB50-L 50 ~ 109
300 0.87 1.97 3.19 6.299 5.591 4.80 13.0TGB50-M 100 ~ 304
TGB50-H 144 ~ 398
TGB70-H 216 ~ 796 160 1.26 2.76 4.33 8.661 7.874 6.69 37.5
TGB90-L 325 ~ 976120 1.65 3.54 6.18 11.61 10.433 9.29 82.7
TGB90-H 686 ~ 2,313
TGB110-L 506 ~ 1,446100 2.05 4.33 7.68 13.98 12.795 11.30 153
TGB110-H 1,156 ~ 3,760
TGB130-L 868 ~ 2,24080 2.36 5.12 9.06 15.75 14.173 12.56 225
TGB130-H 1,950 ~ 5,200
TGB SERIES An economical choice for general use.
The TGB series can be used with almost any
machine. Offers automatic resetting, easy-to-read
torque indicator, and no backlash.
TGM SERIES The gasket and O-ring sealed construction in
the TGM series is unique. Excels in wet, dusty,
and oily applications. Designed for long life,
tough environments.
MODELTORQUE RANGE
(LBS. - FT.)MAXIMUM
RPMBORE RANGE A F G H I WT (LBS.)
TGM3 1.1 ~ 2.7 600 0.39 ~ 0.55 2.36 3.15 0.87 1.181 1.97 1.3TGM6 1.8 ~ 4.7 600 0.39 ~ 0.55 2.36 3.15 0.87 1.181 1.97 1.3
TGM20 4.7 ~ 14.5 500 0.55 ~ 0.79 2.76 3.94 1.18 1.575 2.36 2.4
TGM60 14.5 ~ 50 300 0.79 ~ 1.18 3.50 5.24 1.87 2.362 3.39 5.5
TGM200 50 ~ 166 200 1.10 ~ 1.97 4.33 7.00 2.75 3.228 5.24 11.9
TGM400 166 ~ 333 150 1.50 ~ 2.36 6.18 10.75 3.50 4.488 7.48 37.8TGM800 333 ~ 665 150 1.50 ~ 2.36 6.18 10.75 3.50 4.488 7.48 37.8
Select based on torque required, rpm, and shaft diameter:
Select based on torque required, rpm, and shaft diameter:
SPECIFICATIONS
SELECTION
TGB08~TGB16 TGB20~TGB50 TGB70~TGB130
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Tsubaki®: The choice for overload protection and safety
TGX SERIES A high-precision option, the TGX series features no
backlash and unsurpassed operation rigidity. Ideal for
machines that require accurate positioning.
TGZ SERIES A release-type protection device, the TGZ series
offers on-off clutch capability. Its simple and
straightforward adjustments make it easy to use.
MODELTORQUE
RANGE (FT. - LBS.)
MAXIMUMRPM
ROUGH STOCK BORE
MAXIMUM BORE
DIAMETERA H J K (PCD) L
U (SCREW DIA. AND LENGTH)
WT (LBS.)
TGZ20-L 1.7 ~ 6.1
1800 0.32 0.79 2.91 0.43 3.78 3.386 2.835 M5 X 10 5.7TGZ20-M 3.0 ~ 11.6
TGZ20-H 6.0 ~ 23.1
TGZ30-L 4.3 ~ 15.21800 0.47 1.18 3.29 0.45 4.65 4.173 3.425 M6 X 12 9.2TGZ30-M 14.5 ~ 38.3
TGZ30-H 28.9 ~ 79.5TGZ40-L 18 ~ 69
1800 0.67 1.57 3.98 0.55 5.98 5.472 4.488 M6 X 12 19TGZ40-M 32 ~ 94
TGZ40-H 65 ~ 181TGZ50-L 46 ~ 116
1800 0.87 1.97 4.51 0.63 7.01 6.378 5.236 M80 X 16 30TGZ50-M 94 ~ 224
TGZ50-H 181 ~ 333
MODELTORQUE RANGE
(FT. - LBS.)
MAXIMUMRPM
ROUGH STOCK BORE
MAXIMUM BORE
DIAMETERA G H (PCD) J (PCD)
Q (SCREW DIA. AND LENGTH)
U (SCREW DIA. AND LENGTH)
WT (LBS.)
TGX10-L 1.2 ~ 4.7
1400 0.27 0.59 2.09 2.441 2.126 1.339 M4 x 6 M4 X 7 1.7TGX10-M 4.0 ~ 10.9
TGX10-H 8.0 ~ 21.7
TGX20-L 4.8 ~ 17.4
1100 0.33 0.98 2.52 3.386 2.913 1.969 M5 x 8 M4 X 7 3.7TGX20-M 9.6 ~ 25.1
TGX20-H 18.8 ~ 50TGX35-L 17 ~ 50
800 0.47 1.38 2.68 4.213 3.465 2.362 M6 x 7 M5 X 8 5.5TGX35-M 32 ~ 72TGX35-H 64 ~ 145TGX50-L 33 ~ 87
600 0.71 2.17 3.62 5.827 5.118 – M8 x 13 – 15TGX50-M 66 ~ 145
TGX50-H 130 ~ 289
TGX70-L 94 ~ 268480 0.91 2.76 3.86 7.283 6.457 – M10 x 13 – 25TGX70-M 195 ~ 376
TGX70-H 289 ~ 578
Select based on torque required, rpm, and shaft diameter:
Select based on torque required, rpm, and shaft diameter:
SELECTION
SELECTION
SAFCON®
TORQ
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LIM
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Tsubaki®: The choice for overload protection and safety
Torque Limiter Refined by Tsubakimoto in Japan for over 40 years, the Torque
Limiter is a simple and inexpensive mechanical device that, true
to its name, limits damage to equipment when an unexpected
increase in torque occurs because of a jam or overload.
Easy to install, the Torque Limiter attaches to a shaft and holds
the drive or driven sprocket, gear, or sheave. A frictional system,
the Torque Limiter reacts instantly when there is a jam by slipping
and absorbing the brunt of the force, preventing the increased
power from damaging your equipment.
Advantages over other devices:
Competitively priced
No resetting is required
Adaptable to thousands of types of equipment configurations
Can be used alone or in conjunction with other process controls.
Not all Torque Limiters are created equally.
Tsubaki has developed a superior Torque Limiter that allows
for more precise adjustments than other products of the same
name. We accomplish this by using a finer-pitch thread on the
adjustment bolts enabling accurate setting of the slip-point – no
longer settle for just a ballpark value. Tsubaki Torque Limiters use
specially-formulated friction materials to extend time between
replacement and improve repeatability of the slip-point. Tsubaki
Torque Limiters provide long life, consistent performance, and the
best value over years of operation.
INDUSTRY APPLICATION
Material handling Conveyors, turntables, elevators
Water treatment plants Pumps, scrappers, water screens
Food machineryScrew and belt conveyors, bucket elevators
Machine tool Tapping machines, drill presses
Chemical Pumps, agitators, filters
Environmentally safe, Tsubaki Torque Limiter contains no asbestos and no lead.
Torque Limiter can be used with a sprocket, sheave, or gear.
Tsubaki Torque Limiter’s finer adjustment screw pitch means more precision.
Excellent for hard work and heavy use.
TL SERIES Traditional machine protection. Friction-type
construction. Slip-torque setting is done by simply
tightening the adjusting nut or bolts. Competitively
priced and easy to use.
MODELTORQUE RANGE
(LBS. - FT.)MAXIMUM
RPM
ROUGH STOCK BORE
MAX. BORE W.STD. KW
BUSHING LENGTHS D DH L S (MAX.)WT
(LBS.)
TL200-1L 0.7 ~ 1.5
1800 0.28 0.55 0.150, 0.236 2.0 0.95 1.14 0.276 0.44TL200-1 2.2 ~ 7.2
TL200-2 5.0 ~ 15
TL250-1L 2.2 ~ 5.0
1800 0.39 0.88 0.177, 0.256 2.5 1.38 1.88 0.354 1.32TL250-1 5.0 ~ 20
TL250-2 10 ~ 40TL350-1L 7.0 ~ 15
1800 0.67 1.00 0.177, 0.256, 0.374 3.5 1.65 2.44 0.630 2.65TL350-1 15 ~ 55TL350-2 25 ~ 110
TL500-1L 15 ~ 361800 0.78 1.75 0.256, 0.374 5.0 2.56 3.0 0.630 7.72TL500-1 35 ~ 155
TL500-2 65 ~ 310TL700-1L 36 ~ 87
1800 1.18 2.63 0.374, 0.492 7.0 3.75 3.86 1.142 18.5TL700-1 85 ~ 420
TL700-2 165 ~ 800
TL10-16 289 ~ 9401000 1.18 2.84 0.492, 0.610, 0.768 10 3.94 4.53 0.945 46.3
TL10-24 435 ~ 1,370
TL14-10 651 ~ 1,960500 1.57 3.94 0.610, 0.768, 0.925 14 5.71 5.91 1.142 115
TL14-15 1,446 ~ 2,890
TL20-6 1,807 ~ 3,615500 1.97 5.12 0.610, 0.768, 0.925 20 7.28 6.89 1.22 258
TL20-12 3,400 ~ 6,870
Select based on torque required, rpm, and shaft diameter. Bushing Length selection should be equal to or shorter than width of center member (sprocket, etc.):
SELECTION
TL200~TL350 TL500~TL700 TL10~TL20
SAFCON®
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Tsubaki®: The choice for overload protection and safety
Select based on thrust load:
Axial Guard Straight-line operations like pushers and cranks present
unique challenges for determining and deflecting overload.
Distinguished in the marketplace, U.S. Tsubaki’s Axial Guard
offers a new style of protection using ball and grooves that
provide a consistent, repeatable, user-defined trip point.
Advantages over other devices:
Highly-accurate repeatable trip point
No parts to replace
Easy installation using tapped end caps
Load adjustment set with a single screw
Non-backlash design allows a “rigid” installation
Axial Guard offers overload protection where motion is back
and forth rather than rotating. This new-style mechanical
protection device is easy to install and to adjust.
Axial Guard works in either pushing or pulling applications
– and the trip point in either direction is identical. When
overloads occur, the Axial Guard “trips” and eliminates the
overload that can result in damage and downtime. To reset,
a small pull or push in the opposite direction is all it takes to
return Tsubaki’s Axial Guard to operation. Downtime has been
limited and production is up and going quickly.
INDUSTRY APPLICATION
Bulk handlingConveyor torque arms, damper doors
Assembly equipmentInserters, pick and place equipment
Metal-forming equipment Extruders, formers
Packaging equipment Carton sealing, labeling
Axial Guard is a new style of machine protection.
Axial Guard mounts directlyto shaft.
Axial Guard provides immediate release when overload occurs.
Axial Guard addresses the difficult problem of straight-line operations.
AXIAL GUARD An all new mechanical-type overload device,
the Axial Guard protects when the load acts
linearly, as with pushers or cranks.
MODELTHRUST LOAD RANGE (LBS.)
A N P U X WT (LBS.)
TGA65 33 ~ 143 1.3 2.3 0.6 M6 M3 0.4
TGA150 132 ~ 330 1.5 2.8 0.8 M8 M4 0.9
TGA250 165 ~ 550 1.8 3.5 0.9 M12 M5 1.5
TGA350 220 ~ 770 2.2 4.3 1.2 M14 M6 2.6
SELECTION
The cam pushes the work piece. When overload occurs due to the over-weighted work piece or jamming, the Axial Guard trips and protects the machine.
SAFCON®
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C
Rubbing Surface on both ends
OB
OA
0.0012
0.0012
A
A
A
A 0.0019
0.0019
A A
Hub Hub
C
Rubbing Surface on both ends
OB
OA
0.0012
0.0012
A
A
A
A 0.0019
0.0019
A A
Hub Hub
MODEL RS35 RS40 RS50 RS60 RS80 RS100 RS120 RS140 RS160
TL200 20 16
TL250 20 17
TL350 26 21 18 15
TL500 29 25 19
TL700 33 26 21 16
TL10 29 24 22
TL14 39 33 29 26
TL20 54 46 40 35
MINIMUM ROLLER CHAIN SPROCKET SIZE AND NUMBER OF TEETH
MODELA
MIN. DIA.B
BOREC
MAXSURFACE FINISH-
A&B
TL200 2.17 1.1811 ~ 1.1822 0.276
TL250 2.76 1.6141 ~ 1.6161 0.354
TL350 3.74 1.9291 ~ 1.9311 0.630
TL500 5.24 2.9133 ~ 2.9154 0.630
TL700 7.25 4.1338 ~ 4.1358 1.142
TL10 10.24 5.1349 ~ 5.3177 0.945
TL14 14.25 7.2047 ~ 7.2075 1.142
TL20 20.24 8.8976 ~ 8.9004 1.220
CENTER MEMBER MACHINING TOLERANCES
63 micro-inch finish max.
Drawing illustrates hub held in machining center. Note machining values, H7 bore tolerances recommended.
TORQUE LIMITER HUB MACHINING
TORQUE LIMITER MACHINING GUIDELINES
C
Rubbing Surfaceon both ends
OB
OA
0.0012
0.0012
A
A
A
A0.0019
0.0019
A A
Hub Hub
C
Rubbing Surfaceon both ends
OB
OA
0.0012
0.0012
A
A
A
A0.0019
0.0019
A A
Hub Hub
TL200~700 TL10~20
Sprocket
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LIM
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Tsubaki: The choice for overload protection and safety
MODEL RS25 RS35 RS40 RS50 RS60 RS80 RS100 TS120 RS140 RS160
TGB08 24 17 14 12 10
TGB12 28 20 16 13 11
TGB16 32 23 18 15 14
TGB20 48 34 26 22 19 15 13 11
TGB30 60 41 32 26 22 18 15 13
TGB50 57 43 35 30 24 20 17
TGB70 58 47 40 31 26 22
TGB90 62 52 40 33 28 25 22
TGB110 74 62 48 39 33 29 26
TGB130 83 70 53 43 37 32 24
MINIMUM ROLLER CHAIN SPROCKET SIZE AND NUMBER OF TEETH
Drawing illustrates hub held in machining center. Note machining values, H7 bore tolerances recommended.
TGB TORQUE SHIELD HUB MACHINING
TGB SHOCK GUARD MACHINING GUIDELINES
MODELA
PCDB C D E F
TGB08 1.339 3 0.139 1.5748 -H7 1.103 0.118
TGB12 1.575 3 0.177 1.8898 - H7 1.299 0.118
TGB16 1.969 3 0.177 2.2835 - H7 1.614 0.118
TGB20 3.071 4 0.217 3.5433 - H7 2.520 0.118
TGB30 3.937 6 0.260 4.4488 - H7 3.307 0.157
TGB50 5.591 6 0.354 6.2992 - H7 4.882 0.197
TGB70 7.874 6 0.433 8.6614 - H7 6.772 0.197
TGB90 10.433 8 0.531 11.6141 - H7 9.449 0.197
TGB110 12.795 6 0.689 13.9763 - H7 11.496 0.197
TGB130 14.173 8 0.689 15.7840 - H7 12.795 0.197
DRIVE MEMBER MACHINING TOLERANCES
B O C drilled hole
DO E
O
Hub
0.0012 A
0.0012 A
0.0012 A
0.0012 A
A
Hub
A
FDCP A
B O C drilled hole
D
O E
O
Hub
0.0012 A
0.0012 A
0.0012 A
0.0012 A
A
Hub
A
F D C
P A
B O C drilled hole
D
O E
O
Hub
0.0012 A
0.0012 A
0.0012 A
0.0012 A
A
Hub
A
F D C
P A
TGB08~16 TGB20~130
B O C drilled hole
DO E
O
Hub
0.0012 A
0.0012 A
0.0012 A
0.0012 A
A
Hub
A
FDCP A
B O C drilled hole
DO E
O
Hub
0.0012 A
0.0012 A
0.0012 A
0.0012 A
A
Hub
A
FDCP A
Sprocket
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Pneumatic torque adjustment mechanism
One position type
High accuracy
Air clutch ON-OFF mechanism
This uniquely assembled torque transmission element ball and pocket configuration only engages in one position.
You can remotely adjust the torque during operation by adjusting the air pressure in the regulator.
Achieves minimal backlash.
Also usable as an ON-OFF clutch in remote control.
A multifunctional product combining a ball type overload protection device and an air clutch function.
Features
Shock Guard TGK Series
TGK
Type 2Enables direct mounting of A type sprockets and pulleys.
Type 5
The Echt -F lex Coupl ing provides angular tolerance.Parallelism errors are not allowed.
Type 7The Echt -F lex Coup l ing provides angular tolerance and parallelism tolerance.
(Ex-MYTORQ 630 Series)
79
TGK Series
Shock Guard
Construction andOperating Principles
TGK20 to 45
The TGK series transfers driving force from the hub to the drive plate on the output side via drive balls (and vice versa).Bolt a sprocket or timing pulley directly to the drive plate.The hub fl ange has several holes to hold the drive balls.There are pockets on the drive plate on the output side, and the drive balls are fi tted intothe pockets.If you feed air into the cylinder through the air supply port, the piston moves toward the drive plate.Then, the drive balls are pushed via the slide plate and transfer the driving force.You can change the torque according to the load during operation. You can also change the torque automatically by making a system to change the pressure using a timer or controller.For instance, by using such a system to switch between a high torque corresponding to the starting torque and a low operating torque, you can set the torque to the optimal value for the machine.When an overload occurs, the drive balls push back the slide plate toward the cylinder against the air pressure.The drive balls then come out of the pockets and start to idle.
By detecting the amount of movement of the sensor target toward the cylinder by a limit switch and removing the force applied to the drive balls by removing the air from the cylinder, you can completely release the driving force and protect the machine.Clutch mechanismTo disconnect the drive source for adjustment or maintenance of the machine, stop feeding air and remove the air from the cylinder. The housing and slide plate are then pushed back toward the cylinder by the built-in spring.Consequently, the drive balls come out of the pockets on the drive plate for declutching.The drive plate has a bearing inside, and therefore there are no problems even if the drive plate is left to idle for a long period of time.Resetting (clutching) procedureIf you supply air from the air supply port and restart the operation, the drive balls automatically return to their positions within one revolution.If you continue to rotate the TGK series while feeding air after the occurrence of an overload, the TGK series repeatedly reset. Therefore, detect overloads using a limit switch or a similar device and stop feeding air.
During normal operation (engagement) During overload (trip)
Slide plate
Drive plate(pocket)
Drive ball(Steel ball)
Piston Air supply port
Cylinder
Hub
Sensor target
Construction andOperating Principles
34
219
175
1814
15
1
166
22
2321
2028
27
1213
1124
7
2526
9
108
29
① Hub② End nut③ Hexagon socket head set screw
④ Set piece⑤ Drive plate⑥ Slide plate⑦ Cylinder⑧ Pipe joint⑨ Cylinder cover
⑩ Hex cap countersunk screw
⑪ Piston⑫ Seal A⑬ Seal B⑭ Drive ball (Steel ball A)
⑮ Bush⑯ Snap ring A⑰ Radial bearing⑱⑲ Thrust bearing A⑳ Housing㉑ Hex cap countersunk screw
㉒ Thrustbearing B
㉓ Thrust race㉔ Dry bearing㉕ Ball bearing㉖ Snap ring B㉗ Sensor target㉘ Hex nut㉙ Grease nipple
TGK20 to 45
80
Shock Guard
Transmissible Capacity/DimensionsφH h6
P.C.D.φG
φF
φE
φL1φS
R
D
U Amount of movement due to overload
O2
2-Q through2×90°
Z2
Z1
2-Z
2-O16-N6×60°
φY
B
C
A
J1
Y1
φI
φM
U1 Displacement during declutching
⑲
④ ② ③ ⑪ ⑬⑫ ⑦ ⑨ ①
⑩ ⑧⑰ ⑤ ⑱ ⑭ ⑮ ⑯ ㉙ ⑥ ㉒ ㉓ ⑳ ㉕ ㉖
㉘㉑ ㉗ ㉔
O3 O3O4
■TGK20-A2・TGK30-A2・TGK45-A2
⑥ Slide plate⑦ Cylinder⑧ Pipe joint⑨ Cylinder cover⑩ Hex cap countersunk screw⑪ Piston⑫ Seal A⑬ Seal B⑭ Drive ball (Steel ball A)⑮ Bush⑯ Snap ring A⑰ Radial bearing⑱⑲ Thrust bearing A⑳ Housing㉑ Hex cap countersunk screw㉒ Thrust bearing B㉓ Thrust race㉔ Dry bearing㉕ Ball bearing㉖ Snap ring B㉗ Sensor target㉘ Hex nut㉙ Grease nipple
① Hub② End nut③ Hexagon socket head set screw
④ Set piece⑤ Drive plate
Unit : mm
Model No. Set torque rangeN・m
Max. rpmr/min*1
Air pressureMPa
Shock Guard SA B C D E F G
P.C.D.Hh6 IRough bore
diamterMin. borediameter
JIS keyway for max. bore dia.
TGK20-A2 15 to 65 340 0.14 to 0.55 8 10 20 79 11 3.5 45.5 88 80 70 57 51
TGK30-A2 30 to 147 230 0.14 to 0.55 10 12 30 95 13 5.5 53 115 100 90 75 69
TGK45-A2 90 to 392 430 0.14 to 0.55 20 22 45 124 15.5 7 74.4 159 140 125 100 94
Model No. J1 L1 MN screw
diameter×length
O1 screw diameter×
lengthO2 O3 O4 Q screw
diameter*2 R*2 U U1Air supply
portY*3
Y1
TGK20-A2 61 88 30 M5×9 M5×10 21 135° 90° M5 5 1.2 1.8 4 21
TGK30-A2 75 115 45 M6×11 M6×12 23 135° 90° M6 5 1.8 2.0 8 23
TGK45-A2 98 159 60 M8×13 M8×15 34 120° 90° M8 8 2.2 2.9 8 34
Model No.Z
Z1 Z2 Mass*4
kgMoment of inertia*4
kg・m2Allowable radial
load NScrew diamter × length
Facing diameter × Depth
TGK20-A2 M4×10 φ5×3.5 15 35 2.3 0.00061 6200
TGK30-A2 M4×10 φ5×4.5 16.5 45 4.6 0.00201 9500
TGK45-A2 M5×10 φ6×5 20 65 11.2 0.00854 12700
*1. Contact us for details on use at speeds higher than the maximum speed. 2. Setscrew taps are not processed. Dimensions are for reference only. 3. Y represents the outer diameter of the applicable tube. 4. Mass and moment of inertia are based on the bores' maximum diameters.Note) When installing a pulley or sprocket, use high-tensile bolts (G10.9 or higher) and determine the length carefully so that the bolts are not buried deeper than the
mounting tap depth N.The air supply port is a pipe joint applicable to both nylon and urethane tubes.An example of the installation of a limit switch is shown on page 84.
Type 2
81
TGK Series
Shock Guard
Transmissible Capacity/Dimensions
φL1φS
D
O2
2×90°
Z2
2-Z
2-O1
φY
B2
A
J1
Y1
φE1
φF1
φS1
B1
A1
A3
C1 A2
X
2-P1
4-N1
R1
2×90°
φM
R
② ③ ⑤ ⑥ ④ ⑦ ①
⑧⑨
⑩⑪
Z1
O3 O3O4
This is acombination of the TGK-A2 and the Echt-Flex Coupling NEF Series Single Type.
U Amount of movement due to overload
2-Q through2-Q1 through
U1 Displacement during declutching
■TGK20-A5・TGK30-A5・TGK45-A5
① Mounting adapter② Coupling hub③ Reamer bolt④ Washer A⑤ Washer B⑥ Disk⑦ U nut⑧ Hex cap bolt⑨ Spring washer⑩ Hexagon socket head set screw
⑪ Set piece
Unit : mm
Model No. Set torque rangeN・m
Max. rpmr/min*1
Air pressureMPa
Shock Guard S Coupling S1A A1 A2 A3 B1 B2 C1 DRough bore
diamterMin. borediameter
JIS keyway for max. bore dia.
Rough borediamter
Min. borediameter
JIS keyway for max. bore dia.
TGK20-A5 15 to 65 340 0.14 to 0.55 8 10 20 15 17 42 79 33.5 88.3 133 24.5 14 11.2 45.5
TGK30-A5 30 to 147 230 0.14 to 0.55 10 12 30 15 17 60 95 47.8 115.5 175 33.8 22 11.7 53
TGK45-A5 90 to 392 430 0.14 to 0.55 20 22 45 25 27 74 124 57.2 137.5 211.5 43.2 17 16.8 74.4
Model No. E1 F1 J1 L1 MN1 screwdiamter ×
length
O1 screw diameter×length
O2 O3 O4P1 screw diameter×length
Q screw diameter
*2
Q1 screw diameter
*2R*2 R1*2 U U1
Air supply port Y*3 Y1
TGK20-A5 104 61 61 88 30 M5×20 M5×10 21 135° 90° M4×6 M5 M5 5 8 1.2 1.8 4 21
TGK30-A5 143 84 75 115 45 M6×25 M6×12 23 135° 90° M5×6 M6 M6 5 12 1.8 2.0 8 23
TGK45-A5 168 106 98 159 60 M8×25 M8×15 34 120° 90° M5×6 M8 M8 8 15 2.2 2.9 8 34
Model No.Z
Z1 Z2 Mass*4
kgMoment of inertia*4
kg・m2Coupling
model No. X*5
Allowable MisalignmentScrew diamter × length
Facing diameter × Depth
Angularmisalignment deg
Shaft direction displacement*6
TGK20-A5 M4×10 φ5×3.5 15 35 4.2 0.00319 NEF25S 21 1 ±1.4
TGK30-A5 M4×10 φ5×4.5 16.5 45 9.9 0.0164 NEF80S 29.5 1 ±1.8
TGK45-A5 M5×10 φ6×5 20 65 18.4 0.0359 NEF130S 20 1 ±2.5
*1. Contact us for details on use at speeds higher than the maximum speed. 2. Setscrew taps are not processed. Dimensions are for reference only. 3. Y represents the outer diameter of the applicable tube. 4. Mass and moment of inertia are based on the bores' maximum diameters. 5. This is the space required for the insertion of a reamer bolt. 6. The allowable displacement in the shaft direction is the value when the angular error is zero.Note) The air supply port is a pipe joint applicable to both nylon and urethane tubes.
An example of the installation of a limit switch is shown on page 84.Parallelism errors are not allowed.
Type 5
82
Shock Guard
Transmissible Capacity/Dimensions
φL1 Z1
φS
R
D
O2
2×90°
Z2
2-Z
2-O1
φY
B2
A
J1
Y1
φE1
φF1φS1
C1
A3
C2 A2
X
A1
C1B1
4-N1
2-P1
R12×90°
φM
② ⑧⑤⑦⑥④③ ①
⑨⑩
⑪⑫
O3 O3O42-Q through
U Amount of movement due to overloadU1 Displacement during declutching
This is acombination of the TGK-A2 and the Echt-Flex Coupling NEF Series Long Spacer Type.
2-Q1through
■TGK20-A7・TGK30-A7・TGK45-A7
① Mounting adapter② Coupling hub③ Long spacer④ Reamer bolt⑤ Washer A⑥ Washer B⑦ Disk⑧ U nut⑨ Hex cap bolt⑩ Spring washer⑪ Hexagon socket head set screw
⑫ Set piece
Unit : mm
Model No. Set torque rangeN・m
Max. rpmr/min*1
Air pressureMPa
Shock Guard S Coupling S1A A1 A2 A3 B1 B2 C1 C2 DRough bore
diamterMin. borediameter
JIS keyway for max. bore dia.
Rough borediamter
Min. borediameter
JIS keyway for max. bore dia.
TGK20-A7 15 to 65 340 0.14 to 0.55 8 10 20 15 17 42 79 33.5 88.3 221.8 24.5 14 11.2 100 45.5
TGK30-A7 30 to 147 230 0.14 to 0.55 10 12 30 15 17 60 95 47.8 115.5 290.3 33.8 22 11.7 127 53
TGK45-A7 90 to 392 430 0.14 to 0.55 20 22 45 25 27 74 124 57.2 137.5 334.7 43.2 17 16.8 140 74.4
Model No. E1 F1 J1 L1 MN1 screwdiamter ×
length
O1 screw diameter×length
O2 O3 O4P1 screw diameter×length
Q screw diameter
*2
Q1 screw diameter
*2R*2 R1*2 U U1
Air supply port Y*3 Y1
TGK20-A7 104 61 61 88 30 M5×20 M5×10 21 135° 90° M4×6 M5 M5 5 8 1.2 1.8 4 21
TGK30-A7 143 84 75 115 45 M6×25 M6×12 23 135° 90° M5×6 M6 M6 5 12 1.8 2.0 8 23
TGK45-A7 168 106 98 159 60 M8×25 M8×15 34 120° 90° M5×6 M8 M8 8 15 2.2 2.9 8 34
Model No.Z
Z1 Z2 Mass*4
kgMoment of inertia*4
kg・m2Coupling
model No. X*5
Allowable MisalignmentSrew diamter ×
lengthFacing diameter × Depth
Angularmisalignment deg
Shaft direction displacement*6
Parallelmisalignment
TGK20-A7 M4×10 φ5×3.5 15 35 5.7 0.00540 NEF25W 21 2 ±2.8 1.5
TGK30-A7 M4×10 φ5×4.5 16.5 45 13.8 0.0276 NEF80W 29.5 2 ±3.6 2.0
TGK45-A7 M5×10 φ6×5 20 65 23.5 0.0573 NEF130W 20 2 ±5.0 2.1
*1. Contact us for details on use at speeds higher than the maximum speed. 2. Setscrew taps are not processed. Dimensions are for reference only. 3. Y represents the outer diameter of the applicable tube. 4. Mass and moment of inertia are based on the bores' maximum diameters. 5. This is the space required for the insertion of a reamer bolt. 6. The allowable displacement in the shaft direction is the value when the angular error is zero.Note) The air supply port is a pipe joint applicable to both nylon and urethane tubes.
An example of the installation of a limit switch is shown on page 84.
Type 7
83
TGK Series
Shock Guard
Torque adjustment
Air control system
Limit Switch Installation Example (Standard option)
You can adjust the torque precisely by adjusting the air pressure corresponding to the required torque. To adjust the air pressure, use a regulator (pressure controller), refer to the torque correlation charts, and feed air into the cylinder of the TGK series. You can even change the operating torque during operation by changing the air pressure. Operating air pressure: 0.14 to 0.55 MPa(Note) Be careful to keep the air supply source pressure
higher than the preset pressure.
The operating torque of existing protection devices cannot be changed during operation.However, it is possible to change the operating torque of the TGK series during operation by changing the air pressure. Therefore, you can protect the machine by setting the torque higher than the starting torque only at startup, and then change the torque to the optimal value at a later time (refer to the figure on the right).
Upon request, the product is delivered with a limit switch installed.
Torque Correlation Chart
00.6 0.5 0.4 0.3 0.2 0.1
10
20
30
40
50
60
70
90
80
Air pressure MPa
TORQUEN・m
0
1
2
3
4
5
6
7
8
9
00.6 0.5 0.4 0.3 0.2 0.1
25
50
75
100
125
150
175
225
200
0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
22.5
Air pressure MPa
TORQUEN・m
00.6 0.5 0.4 0.3 0.2 0.1
50
100
150
200
250
300
350
450
400
0
5
10
15
20
25
30
35
40
45
Air pressure MPaTORQUEN・m
Size Minimum torque N・m Maximum torque N・m
TGK20 15.0 65.0
TGK30 30.0 147
TGK45 90.0 392
Size LA LB LC LD LE Model of limit switch (Omron)
TGK20 73.5 17.5 59 71.5 16.2
SHL-Q55TGK30 73.5 17.5 73.5 86 10.2
TGK45 73.5 17.5 95.5 108.5 -
LE
LA LB
LC LD
0
TORQUE
100%
Time
Starting torque
Operating torque of the TGK
TGK20 TGK45TGK30
84
Shock Guard
Air intake
Size W 200mm、H 190mm、D 90mm
To TGK air supply port
1 4 8 9
2 3 7
Motor startPB1
MS1
Motor stopPB2 R2 R1
Pressure switchPS1
R1
R2 S1
Limit switch
OX
Selecting switchSS1
OX
Selecting switchSS1
MS1 Motor start
R1 Pressure switch
R2
Solenoid valve
Single air control system
Air device configuration
Electrical diagram
Basic operation
Part number Device name Referential model number(SMC)
1 Air fi lter AF20-02
2 Regulator AR20-02
3 Pressure gauge G36-02
4 Spacer with bracket Y200T
5 - -
6 - -
7 3-port solenoid valve VT307-1G-02
8 Silencer AN20-02
9 Pressure switch IS3000-02
Air intake To TGK air supply port
Electrical diagram
Selecting switch (SS1) is set to "AIR ON."Press the motor start button (PB1). The motor starts and the TGK series returns to the "CLUTCH ON" state. The limit switch is turned on, the self-holding of the motor is completed, and the motor continues to rotate even if you release the motor start button (PB1)Note) If the pressure switch is off, the motor does not rotate even if
you press the motor start button (PB1).
The sensor target of the TGK series moves simultaneously when an overload occurs, and the amount of movement is detected by a limit switch or a similar device.If the limit switch is turned off, the solenoid valve (S1) switches to turn off the self-holding of the motor, and then the motor stops.In the "CLUTCH OFF" state, you can do this by turning the selecting switch (SS1) to "AIR OFF." When turned to "AIR OFF," the solenoid valve switches, the air supply to the TGK series stops, the TGK series turns to "CLUTCH OFF," and the motor continues to rotate, but the driving force is not transferred to the driven side.
This system is for simple torque adjustment.You can adjust the torque within an air pressure range of 0.14 to 0.55 MPa.
PB1 Motor start button
PB2 Motor stop button
SS1 Selecting switch
SS2 Pressure switch
S1 Solenoid valve
85
TGK Series
Shock Guard1 2 4 6 3 8 9
5 2 3 7 7
Air intake
Size W 250mm、H 200mm、D 90mm
To TGK air supply port
Motor startPB1 Motor stop
PB2 R2 R1
T1 S1
Pressure switchPS1
R2 OX
Selecting switchSS1 S2
Limit switch
MS1
OX
Selecting switchSS1
R1
MS1
T1
R1
R2
Motor start
タイマー
Solenoid valve 1
Pressure switch
Solenoid valve 2
Air device configuration
Electrical diagram
Dual air control system
Part number Device name Referential model number(SMC)
1 Air fi lter AF20-02
2 Regulator AR20-02
3 Pressure gauge G36-02
4 Spacer with bracket Y200T
5 Spacer Y200
6 T type spacer Y210-02
7 3-port solenoid valve VT307-1G-02
8 Silencer AN20-02
9 Pressure switch IS3000-02
Air intake
To TGK air supply port
Electrical diagram
Basic operationSelecting switch (SS1) is set to "AIR ON."Press the motor start button (PB1). The motor starts and the TGK series returns to the "CLUTCH ON" state. The limit switch is turned on, the self-holding of the motor is completed, and the motor continues to rotate even if you release the motor start button (PB1)Note) If the pressure switch is off, the motor does not rotate even if
you press the motor start button (PB1).
The sensor target of the TGK series moves simultaneously when an overload occurs, and the amount of movement is detected by a limit switch or a similar device.If the limit switch is turned off, the solenoid valve (S1) switches to turn off the self-holding of the motor, and then the motor stops.In the "CLUTCH OFF" state, you can do this by turning the selecting switch (SS1) to "AIR OFF." When turned to "AIR OFF," the solenoid valve switches, the air supply to the TGK series stops, the TGK series turns to "CLUTCH OFF," and the motor continues to rotate, but the driving force is not transferred to the driven side.
PB1 Motor start button
PB2 Motor stop button
SS1 Selecting switch
SS2 Pressure switch
S1 Solenoid valve 1
S2 Solenoid valve 2
This system uses two regulators. At the time of startup, the regulator set to the higher pressure feeds air to the TGK series. A timer is used to count several seconds (1 to 10 seconds), and then the regulator set to the lower pressure is switched in order to reset the torque to the optimal value. Such a system enables various types of automatic torque adjustments during operation.
86
©2016 U.S. Tsubaki Power Transmission, LLCAll Rights Reserved. Printed in U.S.A.
10/16 Rev. 2 L14024
®
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