TMDBMaintenance-freeBearing Solutions

BGG

Technical Information

an EnPro Industries company

BEARING TECHNOLOGY

BGG

Quality

All the products described in this brochure are manufactured under ISO/TS 16949 and ISO 14001 approved quality manage-ment systems.

All certificates are available for download on our website www.ggbearings.com.

Brazil

France

Slovakia USA

Germany

China

2

3

Content

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

TM1.1 DB Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

TM1.2 DB Properties and Advantages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

TM2 DB in Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

TM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

TM3.1 DB Standard Bronze Alloys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Fits and Tolerances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3 Mating Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 Specific Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 Sliding Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.3 pv Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4 Material Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.5 Lifetime Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

TM5 DB Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Forms and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7 Radial Bearings – Flanged Bushes – Thrust Washers . . . . . . . . 15

8 Spherical Bearings – Standard C Series . . . . . . . . . . . . . . . . . . 16

9 Spherical Bearings – Standard E Series. . . . . . . . . . . . . . . . . . . 17

10 Data for Bearing Design Calculation . . . . . . . . . . . . . . . . . . . . . 18

Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.1 DB Solid Lubricants

2.2 Running-in Film DB

2.3 Wear and Friction Properties

4

1 Introduction

TM1.1 DB Structure

1 Support (bronze)

2 Solid lubricant insert

3 Sliding surface with running-in film

TMDB bearings consist of a support particular bearing are based on the

structure cast from one of four requirements of the specific applica-

available high-quality bronze alloys. tion and operating conditions.

Embedded in this structure are solid

lubricant inserts or plugs, providing

continuous lubrication for low friction

and wear rates and long service life.

The inserts, supplemented with an

applied running-in film, are arranged

for optimal distribution of the lubricant

over the life of the bearing. This struc-

ture provides an ultra-low coefficient of

friction, maximum wear resistance,

extended service and corrosion resis-

tance, even in wet, dirty environments

and exposure to seawater. The bronze

alloy and lubricant selected for a

3

2

1

Today's equipment and systems place extensive bearing materials and tech-

enormous demands on bearing nical application knowledge across a

performance and economics. Not only wide range of industries. Our appli-

are bearings expected to perform cation engineering team can provide

under increasingly challenging con- assistance in:

ditions with minimal to no main-

tenance, they are also expected to

deliver greater reliability, longer service

life and lower cost of ownership.

Self-lubricating, maintenance-free DB™

bearings are designed for applications

with high specific loads, long dwell

periods under static loading, and low

sliding speeds, as well as applications

that cannot be conventionally lubri-

cated. In addition, they can be used to

replace existing greased bearings.

GGB brings more than 60 years of

experience and accumulated expertise

in self-lubricating bearings, offering

! Selection of the optimal type of

bearing for your application

! Design with either standard or cus-

tom products

! Calculation of estimated life expec-

tancy

! Assembly and installation

GGB offers the most advanced bearing

materials in the industry, supported by

laboratory testing in state-of-the-art

facilities, produced to the highest

quality standard, and certified to DIN

ISO 9001:2000, ISO/TS 16949:2002,

and DIN EN ISO 14001.

5

1Introduction

TM1.2 DB Properties and Advantages

1.3 Applications

! !Maintenance-free operation Low coefficient of friction

! !High load capacity Negligible stick-slip effect

! !Excellent performance under high Low wear rate for long lifeloads and intermittent movements

! Solid lubricant with superior perfor-mance

Max. static load p MPa 80 150 200

Max. dynamic load p MPa 50 80 100

Max. sliding speed v m/s 0.5

Maximum pv MPa x m/s 1.0 1.0 1.5

Max. temperature °C 250 320 350

Min. temperature °C - 50

Friction coefficient f (dry) 0.05 - 0.18

Min. shaft hardness HB

Shaft surface finish Ramm 0.2 - 0.8

(ground)

Units DB-B DB-C DB-DProperties

Potential applications for DB™ bear- struction, agricultural and other off-

ings include but are not limited to road equipment. The bearings are also

hydro-mechanical equipment such as suitable for use in iron foundries, steel

segment, miter and emergency gates, plants, offshore installations and civil

slewing rings, wind power compo- engineering projects such as bridges

nents, large valves, heavy machinery, and other structures.

cranes and conveyors, mining, con-

Flanged bushesCylindrical bushes

Thrust washers

All bearings are provided with a running-in film, which is not shown.

Slide plates

180 300

Self-aligning bearings

TMTable 1: DB Properties

6

2 TMDB in Operation

Two solid surfaces sliding against one shear the weakest planes in the areas another produce friction resulting in of contact. This process of repeated wear. This friction in turn is a result of: bonding and separation results in

material loss and wear. !Surface adhesion or micro-welding

!Plowing or penetration by surface asperities or third-body particles

!Surface deformation

Adhesive wear results from the formation and destruction of localized bonds at the mating surfaces. To continue sliding, the surfaces must

The self-lubricating properties of DB™ results in higher friction, damaging

bearings offer improved overall perfor- wear and premature bearing failure.

mance compared with conventionally

lubricated bearings, particularly where

external lubrication with grease or oil is

difficult to maintain. These lubricants

can be expelled from the contact zone

under high loads, during long dwell

periods, under static contact, or even

under normal rotating or oscillating

motion. This lubricant starvation often

The use of polymers and other solid bearings provide consistent friction

lubricants reduces adhesive friction and wear performance over their useful

and wear between sliding metal sur- life.

faces. The running-in film and PTFE or

graphite inserts in DB™ bearings sepa-

rate their sliding layers from mating

surfaces. The bearings are designed to

maintain a solid lubricating film even

when they are not moving. This en-

sures low friction and wear even under

high static loads. By delivering a con-

stant supply of solid lubricant, the

Unlubricated Operation

Operation with External Lubrication

Operation with Solid Lubricant

Hydrodynamic lubricating film

Solid lubricant film

Solid lubricant film

Solidlubricant insert

steel

bronze

steel

bronze

steel

bronze

7

2TMDB in operation

TM2.1 DB Solid Lubricants

2.3 Wear and Friction Properties

TM2.2 Running-in Film DB

The special PTFE- or graphite-based in the bearing is critical to its perfor-

solid lubricants used in DB™ bearings mance.

have been extensively tested under Designed to overlap in the sliding

laboratory conditions and proven in direction, they ensure optimum lubri-

numerous successful applications. cant transfer to the mating surface. In

The solid lubricant plugs are produced addition there is no electrolytic or

by a proprietary process which results chemical reaction with the support or

in high density and lubricity, and are mating material, even when the

inserted into pockets in the bronze bearings are subjected to high humi-

support. The distribution of these plugs dity or submerged in water.

The primary factors affecting the some humidity, for example, the value

friction of DB™ bearings are pressure, could be as low as 0.06; under lower

velocity, temperature and mating loads and high temperatures it could

surface condition, with pressure being reach 0.15. For DB™ bearings calcula-

the most influential. Coefficient of tions, assume a coefficient of friction

friction and wear rates are subject to of 0.15 to 0.17.

many factors. Under high loads and

DB™ bearings are supplied with a thin Some of the film is transferred to the

film of solid lubricant to facilitate the mating surface with initial movement of

running-in process. It is applied after the bearing. This is the start of a

the lubricant plugs have been inserted transition period which continues until

and the surface has been finish the solid lubricant is released from the

machined. pockets. This material transfer pro-

vides:The running-in film has a thickness of

! Constant low coefficient of friction15 μm to 20 μm and should not be ! Negligible stick-slip effectremoved. In the event of damage to the

film during assembly, spray cans of ! Immediate full load capacity.lubricant can be used for on-site repair.

8

3 Technical data

TM3.1 DB Standard Bronze Alloys*

3.2 Fits and Tolerances

TMFor applications where standard DB alloys are not suitable, we are able to supply special materials

Assembly involves pressing a DB™ cooling is recommended for bearings

bearing with an interference fit between with ODs >200mm. Our application

the outer diameter (OD) and the engineering team can provide a de-

housing bore (Figure 1), and between tailed procedure for this method.

the inner ring and the shaft. Due to the

high insertion forces required, super-

Stan- Alloy Stan- Alloy ASTM DIN Density Tensile Yield E Hard-dard No. dard No. % of % of g/cm³ strength strength % (in ness

weight weight MPa[ksi] MPa[ksi] 50 mm) HB

Cu 83 Cu 83B 584 2.1090.01

Sn 7 Sn 7B 271 C93200 1705 2.1090.03 8.85 207 [30] 97 [14] 15 75

Pb 7 Pb 6,5B 505 2.1090.04

Zn 3 Zn 3,5

B 584 2.0975.01 Cu 81 Cu 79,5

B 148 2.0975.02 Ni 4 Ni 5C95500 1714 7.50 620 [90] 275 [40] 6 190

B 271 2.0975.03 Fe 4 Fe 4,75

B 505 2.0975.04 Al 11 Al 9,5

Cu 61 Cu 63,5B 584

2.0598.01 Zn 27 Zn balanceB 271

C86300 1709 2.0598.02 Fe 3 Fe 2,75 7.70 758 [110] 414 [60] 12 210B 22

2.0598.03 Al 6 Al 5B 505

Mn 3 Mn 3,75

long.

DB grade

DB-B

DB-C

DB-D

DB-E

ASTM DIN Composition Mechanical Properties Application

* The above shown figures are based on ASTM B271 (centrifugal casting) and intended for general information only. GGB application engineering team will

make the appropriate selection based on your application data. The feasibility of some standard alloys depends upon the dimensional and geometric

requirements of each project. Please consult our application engineers for detailed information. Density depends on surrounding temperature and

percentage of each alloy component in the material.

TMTable 2: DB Standard Bronze Alloys

Figure 1: Fitting of Bearings

D £ 120mmo D >120mmo

15 - 30°

for

D£ 1

25

= 0

,8H

for

D>

12

5 =

2H

Note:Lightly oil back of bush to assist assembly

Standard

material -

fulfills most

application

requirements

High load

capacity

with maximum

corrosion

resistance

Highest load

capacity,

but less

corrosion

resistance

than DB-C

9

3Technical data

4Design

TM4 DB Design Factors

!The main parameters for determining Mating surface material

the size or calculating the service life of ! Temperature T [°C]a DB™ bearing include:

! Other factors, e.g. design, housing ! Specific load limit p [MPa]lim material, lubrication, dirt and external ! pv factor [MPa x m/s] influences

! Mating surface roughness Ra [μm]

3.3 Mating material

4.1 Specific Load

TMThe counterface material (shaft) must DB alloy is used, the hardness of the

have appropriate characteristics, such shaft should exceed that of the bronze

as: hardness, surface finish and corro- by at least 100 HB.

sion resistance. When a not standard

Dimension (for bearing bore £ 200 mm) Tolerance Surface finish (mm)

Housing bore H7 3.2

Bush outer Ø s6 3.2

Bearing bore (before assembly) E8 1.2

Bearing bore (after assembly) H10 1.2

Shaft Ø d8 0.2 - 0.8

Concentricity bearing bore / bush outer Ø IT9

Dimension (for bearing bore £ 200 mm) Tolerance Surface finish (mm)

For bearing bores > 200 mm, toleran- parameters of each application. Your

ces should be specified by our appli- specific application may require spe-

cation engineering team based on the cial fitting instructions.

Table 3: Assembly data - cylindrical and flanged bearings

Recommended fitting and tolerance ranges

The specific load p is defined as the working load divided by the projected area

of the bearing and is expressed in MPa.

(4.1.1)

(4.1.2)

(4.1.3)

(4.1.4)

p=

p=

p=

p=

F

4F

F

F

.D Bi

.p (D - D )o i

.L W

.d Ck

Bushes

Thrust Washers

Slide Plates

Spherical Bearings

[MPa]

[MPa]

[MPa]

[MPa]

2 2

10

4 Design

4.2 Sliding Speed

The sliding speed v [m/s] is calculated as follows:

(4.2.1)

(4.2.3)

(4.2.2)

(4.2.4)

v=

v=v=

v=3.60 10

3.60 10 3.60 10

3.60 10

360360

. .D p Ni

. p

. . p N

D +Do i

D +Do i

2

2

.D pi.4j Nosz .4j Nosz

Bushes*

Bushes*

Thrust Washers

Thrust Washers

[MPa]

[MPa]

[MPa]

[MPa].

.

TM*For DB spherical bearings sliding speed calculations, replace D by d .i k

Continuous Rotation

Oscillating Movement

4.3 pv Factor

TMThe useful operating life of a DB bearing is governed by the pv factor, which

is calculated as follows:

(4.3.1)

.pv = p v

[MPa x m/s]

jj

1 432

Figure 2: Oscillating cycle j

11

4Design

4.4 Material Selection

Material selection should be guided by GGB application engineers. For quick

reference the following chart provides a generic interactive method of material

selection:

Is the sliding speed

v below 0,5 m/s?

Consult

GGB Engineering

Consult

GGB Engineering

Is the specific load

p below 80 MPa?Yes No

No

No

Yes

Yes

Yes

Yes

Yes

No

Is corrosion

an issue?

Is the specific load

p below 200 MPa?

Is pv below

1,0 MPa x m/s?

Consider to use

DB-B

NoNo

No

No

Yes Will the bearing work

submerged in water?

Consider to use

DB-C

Consider to use

DB-D

Is pv below

1,5 MPa x m/s?

For working temperatures ≤180°C consider white PTFE-based plugs; for working

temperatures >180°C consider black graphite-based plugs. Maximum working

temperature depends upon the properties of the bronze alloy. Consult GGB

Engineering if your application temperature exceeds the limits of DB™ standard

alloys.

12

4 Design

4.5 Lifetime Estimation

Estimated bearing life is useful in of laboratory tests, simulating the

confirming the suitability of the conditions to which the bearing will be

bearing alloy selected for a particular subjected. The effect of certain condi-

application. On page 18 you will find a tions, especially the presence of abra-

form for entering required data for sive particles, cannot be fully repro-

bearing design calculation. Based on duced in the laboratory. Therefore no

the data, our application engineers lifetime warranties are given unless

can estimate bearing life. expressly declared in writing upon

receipt of written confirmation of all It is important to note that these

application data. calculations are based on the results

Type of load

DB™ bearings exhibit optimum perfor- and/or longer bearing life. Bearing

mance under steady unidirectional performance under dynamic loads,

loads, which reduce fatigue loads and which reduce load capacity, also

effectively increase load capacity. This depends upon fatigue resistance of

allows smaller bearings to be used the material.

Shaft and Bearing Motion

DB™ bearings perform best in a ing life. Conversely if the mating ma-

stationary position against a rotating terial is stationary, the opposite effect

or oscillating mating material. In this occurs; as wear proceeds, the arc of

configuration the arc of contact contact is reduced and contact pres-

increases with wear and the contact sure increases, shortening bearing

pressure decreases, extending bear- life.

Chemical products

Corrosion

GGB can provide guidance with However it is recommended that

regard to the chemical compatibility of chemical resistance be confirmed by

DB™ bearings. testing whenever possible.

Corrosion resistance depends largely electrolytic corrosion can occur, such

on the lubricant, bearing and mating as high humidity atmospheres or

surface materials. Graphite-based submerged equipment. In this case

plugs should never be used where PTFE-based plugs are recommended.

13

TMDB Specification 5

S 15 00 300 DBC 16 - S 1 Sliding plate identification

Plate thickness in mm

Constant

Plate width in mm

Material identification (DBB, DBC, DBD, DBE)

Lubricant plug and running-in film (16 for PTFE, 11 for graphite)

Special part, i.e. grooves, non-standard tolerance

Duplication No.

Part number for sliding plates (example):

Flanged part identification

Bearing ID in mm

Bearing OD in mm

Bearing width in mm

Material identification (DBB, DBC, DBD, DBE)

Lubricant plug and running-in film (16 for PTFE, 11 for graphite)

Special part, i.e. grooves, non-standard tolerance

Duplication No.

Part number for flanged bearings (example):

Bearing ID in mm

Bearing OD in mm

Bearing width in mm

Material identification (DBB, DBC, DBD, DBE)

Lubricant plug and running-in film (16 for PTFE, 11 for graphite)

Special part, i.e. grooves, non-standard tolerance

Duplication No.

Part number for cylindrical bearings (example):

Machined thrust washer identification CW - segments/half/split washers

Washer OD in mm

Washer Thickness (2 digits – ie. 2 mm = 20, 111 mm = 11

Material identification (DBB, DBC, DBD, DBE)

Lubricant plug and running-in film (16 for PTFE, 11 for graphite)

Special part, i.e. grooves, non-standard tolerance

Duplication No.

Part number for thrust washers (example):

BB 300 350 300 DBC 16 - S 1

300 350 300 DBC 16 - S 1

MW 350 30 DBC 16 - S 1

Part number for cylindrical bearings (example):

Part number for flanged bearings (example):

Part number for thrust washers (example):

Part number for sliding plates (example):

Spherical bearing identification

Spherical bearing inner ring material

SS - stainless steel

CS - hard chrome plated carbon steel

Inner ring ID (d) in mm

Material Identification (DBB, DBC, DBD, DBE)

Lubricant plug and running-in film (16 for PTFE, 11 for graphite)

Special part, i.e. grooves, non-standard tolerance

Duplication No.

Part number for spherical bearings (example): SB SS 350 DBC 16 - S 1

TMAll DB parts are not stock items. The quotations. Your inquiry must always

part numbering system presented be provided with additional application

above is intended for general use only conditions and sketches to our tech-

and interpretation of product codes nical analysis.

used by GGB in our prints and

Part number for spherical bearings (example):

14

6 Forms and Dimensions

Radial bearings

Spherical bearings Pintle bearings

Axial bearings / Thrust washers

B

Di

Do

ST

Di

Do

B

C

d dkD

D £ 150 mm - lubricant plugs in through holesi

D >150 mm - lubricant plugs in blind holesi

Combined radial and axial bearings

B1

B

Bfl

ST

Di

D1

Dfl

Do

D £ 150 mm - lubricant plugs in through holesi

D >150 mm - lubricant plugs in blind holesi

Sliding plates

SS L

Movement

W

Dimensions according to drawing

r1

r2

D d

h

TMDB bearings are not stock items. following table such as axial and

Custom-manufactured to specific radial segments, half-shells and

requirements, they can readily be others. For reasons of economy,

produced from drawings providing however, the types and sizes shown

special dimensions and tolerances, in the following tables should be

and in forms not included in the used whenever possible.

All bearings are provided with a running-in film, which is not shown for optical reasons.

15

7 Radial Bearings / Flanged Bushes / Thrust Washers Dimensions–

Radial bearings Flanged bushes - Thrust washers

1012141516202225283035404550556065707580859095

100110120140150

180200

225

250

280300

350

400

450

500

550

600

650

700

750800850900950

10001200

1518202022262832353844505560657076828895

100105110115125135160170

200220

250

275

310330

380

435

490

540

590

640

700

750

800850900950

100010601260

1012141516202225283035404550556065707580859095

100110120140150

180200

225

250

280300

350

400

450

500

550

600

650

700

750*800*850*900*950*

1000*1200*

79

101112151618212226303335404545505560606570758090

100110

135150

170

190

210225

260

300

340

375

415

450

490

525

560600640675710*750*900*

13151819202528323538445056657075808590

100105115120125140150175185

225250

280

315

350375

435

500

560

625

690

750*

815*

875*

940*1000*1060*1125*1200*1250*1500*

1012141516202225283035404550556065707580859095

100110120140150

180200

225

250

280300

350

400

450

500

550

600

650

700

750800850900950

10001200

185205

230

255

285305

355

405

455

510

560

610

660

710

760810860910960

10101210

1518202022262832353844505560657076828895

100105110115125135160170

200220

250

275

310330

380

435

490

540

590

640

700

750

800850900950

100010601260

2022252628323438424550607080859095

100105110115120130140150160180190

230250

275

300

340360

420

480

530

600

650

720

780

840

900960

10201080114012001440

2,53,03,03,03,03,03,03,53,54,04,55,05,05,05,05,05,56,06,57,57,57,57,57,57,57,5

10,010,0

10,010,0

12,5

12,5

15,015,0

15,0

17,5

20,0

20,0

20,0

20,0

25,0

25,0

25,025,025,025,025,030,030,0

* Splitted in length (2 x 0.5) for technical reasons

Fla

ng

ed

bu

sh

Cylin

dri

cal b

ush

an

d t

hru

st

wash

er

Di Di D1 Do Dfl B / Sfl T B

1.0 x Di 0.75 x Di 1.25 x Di

Do recom. min max

Lengthmm

Flangethickn.

Diametermm

Diametermm

Length B mm

B /

S =

fla

ng

e o

r w

ash

er

thic

kn

ess

flT

Len

gth

B =

B +

B/

S w

here

B =

bu

sh le

ng

th a

nd

1fl

T1

16

8 Spherical Bearings – Standard C Series – Dimensions and Load Capacity

ISO 12240-1 C Series

ISO 12240-1 C Series

DB-B

DB-D

Radial [kN]

Radial [kN]

Axial [kN]

Axial [kN]

d

d

dk

dk

r1

r1

r2

r2

a

a

dynamic

dynamic

static

static

dynamic

dynamic

static

static

d1

d1

D

D

B

B

C

C

320340360380

400420440460480

500530560

600630670

710750

800850

900950

320340360380

400420440460480

500530560

600630670

710750

800850

900950

440460480520

560560600620650

670710750

800850900

9501000

10601120

11801250

440460480520

560560600620650

670710750

800850900

9501000

10601120

11801250

160160160190

190190218218230

230243258

272300308

325335

355365

375400

160160160190

190190218218230

230243258

272300308

325335

355365

375400

135135135160

160160185185195

195205215

230260260

275280

300310

320340

135135135160

160160185185195

195205215

230260260

275280

300310

320340

1,11,11,11,5

1,51,51,51,52

222

233

33

33

34

1,11,11,11,5

1,51,51,51,52

222

233

33

33

34

3334

4444

5555

566

66

66

67,5

3334

44445

555

566

66

66

67,5

4334

33333

334

333

33

33

33

4334

33333

334

333

33

33

33

1.0401.0401.0401.460

1.4601.4601.9501.9502.170

2.1702.4002.640

3.0203.8603.860

4.3104.470

5.1405.480

5.8406.600

3.7003.7003.7005.200

5.2005.2006.9606.9607.730

7.7308.5509.400

10.76013.75013.750

15.38015.950

18.31019.550

20.83023.520

1.7301.7301.7302.430

2.4302.4303.2503.2503.610

3.6104.0004.400

5.0306.4306.430

7.1907.460

8.5609.140

9.74011.000

6.1806.1806.1808.680

8.6808.680

11.60011.60012.890

12.89014.25015.670

17.94022.92022.920

25.64026.580

30.52032.590

34.72039.200

Notes:1.Load capacity indicated above is intended for preliminary orientation. It is recommended that our application team evaluates each project. 2.The loads indicated above are the maximum limits under very low sliding speeds.3.Standard spherical bearing sizes per ISO 12240-1; Sizes can also be determined based on specific application operational data. All spherical

bearings are manufactured on customer request and are not available ex-stock.

340360380400

425445465485510

530560590

635665710

755800

850905

9601015

340360380400

425445465485510

530560590

635665710

755800

850905

9601015

375390410440

465480515530560

580610645

690730800

820870

915975

10301090

375390410440

465480515530560

580610645

690730800

820870

915975

10301090

3.6803.8204.0205.120

5.4105.5806.9207.1307.940

8.2209.090

10.080

11.54013.80015.120

16.40017.710

19.96021.980

23.97026.950

13.11013.64014.34018.240

19.27019.89024.68025.40028.290

29.30032.39035.920

41.11049.17053.890

58.42063.110

71.12078.310

85.39096.010

DB-C

Radial [kN] Axial [kN]

dynamic static dynamic static

3.0503.0503.0504.290

4.2904.2905.7405.7406.380

6.3807.0507.750

8.87011.34011.340

12.68013.150

15.10016.120

17.18019.390

5.0905.0905.0907.150

7.1507.1509.5709.570

10.630

10.63011.75012.920

14.79018.90018.900

21.14021.920

25.16026.870

28.63032.320

10.81011.24011.82015.040

15.89016.40020.35020.94023.320

24.16026.71029.620

33.90040.54044.430

48.17052.040

58.64064.570

70.41079.170

18.02018.74019.70025.060

26.49027.34033.92034.91038.880

40.27044.52049.370

56.50067.58074.060

80.29086.730

97.730107.610

117.350131.950

6.1306.3806.7008.530

9.0109.300

11.54011.88013.230

13.70015.15016.800

19.23023.00025.210

27.33029.520

33.27036.630

39.95044.920

21.86022.73023.90030.400

32.12033.16041.14042.33047.150

48.83053.99059.880

68.52081.95089.810

97.370105.190

118.530130.510

142.320160.030

17

Spherical Bearings – Standard E Series – Dimensions and Load Capacity9

ISO 12240-1 E Series

ISO 12240-1 E Series

DB-CDB-B

DB-D

Radial [kN]Radial [kN]

Radial [kN]

Axial [kN]Axial [kN]

Axial [kN]

d

d

dk

dk

r1

r1

r2

r2

a

a

dynamicdynamic

dynamic

staticstatic

static

dynamicdynamic

dynamic

staticstatic

static

d1

d1

D

D

B

B

C

C

505560708090

100110120140160180

200220240260280

300

505560708090

100110120140160180

200220240260280

300

758590

105120130

150160180210230260

290320340370400

430

758590

105120130

150160180210230260

290320340370400

430

354044495560

70708590

105105

130135140150155

165

354044495560

70708590

105105

130135140150155

165

283236404550

555570708080

100100100110120

120

283236404550

555570708080

100100100110120

120

556266778898

109120130150170192

212238265285310

330

556266778898

109120130150170192

212238265285310

330

66748092

105115

130140160180200225

250275300325350

375

66748092

105115

130140160180200225

250275300325350

375

0,60,61111

11111

1,1

1,11,11,11,11,1

1,1

0,60,61111

11111

1,1

1,11,11,11,11,1

1,1

111111

11111

1,1

1,11,11,11,11,1

1,1

111111

11111

1,1

1,11,11,11,11,1

1,1

776665

766786

78876

7

776665

766786

78876

7

390500610780

1.0001.220

1.5201.6402.3902.6903.4103.840

5.3405.8706.4007.6308.970

9.610

130170200260340410

520560810910

1.1601.300

1.8102.0002.1802.6003.050

3.270

470610740950

1.2201.480

1.8501.9902.9003.2604.1404.660

6.4707.1207.7709.260

10.880

11.650

650840

1.0201.3101.6802.040

2.5402.7403.9804.4805.6906.400

8.9009.790

10.68012.72014.950

16.020

220280340440570690

860930

1.3501.5201.9302.180

3.0303.3303.6304.3305.090

5.450

7901.0201.2401.5802.0402.480

3.0803.3204.8305.4406.9007.770

10.79011.87012.95015.43018.130

19.430

130170210260330410

500500820820

1.0701.070

1.6701.6701.6702.0302.410

2.410

40507090

110140

170170270270360360

570570570690820

820

150200260320410500

610610990990

1.3001.300

2.0302.0302.0302.4602.930

2.930

210280360440560690

840840

1.3701.3701.7801.780

2.7902.7902.7903.3804.020

4.020

7090

120150190230

280280460460600600

950950950

1.1501.370

1.370

260340430540680840

1.0201.0201.6601.6602.1702.170

3.3903.3903.3904.1004.880

4.880

Notes:1.Load capacity indicated above is intended for preliminary orientation. It is recommended that our application team evaluates each project. 2.The loads indicated above are the maximum limits under very low sliding speeds.3.Standard spherical bearing sizes per ISO 12240-1; Sizes can also be determined based on specific application operational data. All spherical

bearings are manufactured on customer request and are not available ex-stock.

18

10 Data for Bearing Design Calculation

Application:

Project / No.:

Quantity: New Design Existing Design

Special parts(sketch)

Bearing Type:

B

Di

Do

Cylindricalbushing

ST

Do

Di

Thrust washer

SS

W

L

Slideplate

Rotational movement

Steady load

Rotating load

Oscillating movement

Linear movement

BBfl

Di

Do

Dfl

Flangedbushing

Customer Information

Company

Fax

Street

City / Post Code

Name

Tel.

Date / Signature

Steady load

Spherical bearing

Rotatingload

B

BF

Di

Do

Operating Environment

Ambient temperature T [°]amb

Housing with good heating transfer properties

Light pressing or insulated housing with poor heat transfer properties

Non metal housing with poor heat transfer properties

Alternate operation in water and dry

Lubrication

Process fluid

Lubricant

Dynamic viscosity h

Dry

Continuous lubrication

Process fluid lubrication

Initial lubrication only

Hydrodynamic conditions

Mating Surface

Material

Hardness HB/HRC

Surface finish Ra [mm]

Fits and Tolerances

Shaft DJ

Bearing housing DH

Dimensions [mm]

Inside diameter Di

Outside diameter Do

Length B

Outer ring length BF

Flange diameter Dfl

Flange thickness Bfl

Wall thickness ST

Length of slideplate L

Width of slideplate W

Thickness of slideplate SS

Service Life

Required service life - years

Operating Time

Continuous operation

Intermittent operation

Service hours per day

Days per year

Movement

Rotational speed

Speed v [ms]

Length of stroke L [mm]S

Frequency of stroke [1/min]

Oscillating angle j [°]

Oscillating freq. N [1/min]OSZ

N [1/min]

Load

Radial load F- static [N]- dynamc [N]

Axial load F- static [N]- dynamic [N]

Specific load p- radial [MPa]- axial [MPa]

19

Product Information

GGB and DB are trademarks of

©2010 GGB. All rights reserved.

TM TM GGB

Visit us on the internet:

www.ggbearings.com

GGB gives an assurance that the products described in this GGB’s sales and delivery terms and conditions, included as an

document have no manufacturing errors or material deficien- integral part of quotations, stock and price lists, apply absolute-

cies. The details set out in this document are registered to assist ly to all business conducted by GGB. Copies can be made avail-

in assessing the material's suitability for the intended use. They able on request.

have been developed from our own investigations as well as

from generally accessible publications. They do not represent Products are subject to continual development. GGB retains

any assurance for the properties themselves. the right to make specification amendments or improvements

to the technical data without prior announcement.

Unless expressly declared in writing, GGB gives no warranty

that the products described are suited to any particular purpose

or specific operating circumstances. GGB accepts no liability

for any losses, damages or costs however they may arise Edition 2010 (This edition replaces earlier editions which hereby

through direct or indirect use of these products. lose their validity).

IN201ENG06-10USA

GGB North America700 Mid Atlantic Parkway

. .Thorofare New Jersey 08086 USA Tel. +1-856-848-3200Fax +1-856-848-4552

.eMail: usa@ggbearings.com www.ggbearings.com

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