PB bearing (complying with ISO3547 and DIN1494 )

PB bearing is a kind of maintenance free pre-lubricated composite sliding bearing, its sliding surface has a highly effective grease retention system (lubrication pockets) which enable the bearing require only a trace of lubricant to operate satisfactory for very long periods. The bearing effectively bridges the gap between fully lubricated bearing and self-lubricating dry bearing.
Material structure

Acetal resin serves as the sliding surface, it has the outstanding property of high wear resistance and low friction when just a trace of lubricate applied to its surface .

 

Sintered porous bronze acts as a bond between steel backing and acetal resin, and it also effectively conduct heat away from the sliding surface.

 

Steel backing provides high load carrying capacity, excellent heat dissipation.

Features Main applications

Maintenance-free operation  

Long service life

High load capacity

Virtually no stick-slip

Less senstive to edge loading

Very good frictional properties

Agricultural machines

Off-highway truck and automotive

Construction machinery 

Handling and lifting equipment

Mining machinery

General engineering

Technical data Application recommendations
Max. specific  bearing load: 250 N/mm  (static) Shaft tolerance: h8
140 N/mm2  (dynamic)
Max. sliding velocity: 2.5 m/s Housing tolerance: H7
Coefficient of friction: 0.02 ~ 0.025 Shaft roughness (um): Ra0.8
Temperature range: -40 ~ 125 Shaft hardness : 150 ~ 600 HB
Bearing size table (unit: mm)

d

D

Shaft  h 8

Housing H 7

Thickness

h

f1

f2

L  & P.N.

Min.

Max.

10

12

15

20

25

30

35

40

45

50

60

10

12

10

12

0.955

0.980

4

0.6

0.3

1010

1012

1015

1020

 

 

 

 

 

 

 

12

14

12

14

1210

1212

1215

1220

 

 

 

 

 

 

 

14

16

14

16

 

1412

1415

1420

 

 

 

 

 

 

 

15

17

15

17

 

1512

1515

1520

1525

 

 

 

 

 

 

16

18

16

18

 

 

1615

1620

1625

 

 

 

 

 

 

18

20

18

20

 

 

1815

1820

1825

 

 

 

 

 

 

20

23

20

23

1.445

1.475

0.6

0.4

 

 

2015

2020

2025

2030

 

 

 

 

 

22

25

22

25

 

 

2215

  

2225

 

 

 

 

 

 

25

28

25

28

6

 

 

2515

2520

2525

2530

 

 

 

 

 

28

32

28

32

1.935

1.970

1.2

0.4

 

 

 

2820

 

2830

 

 

 

 

 

30

34

30

34

 

 

 

3020

3025

3030

3035

3040

 

 

   

35

39

35

39

 

 

 

3520

 

3530

3535

3540

 

   

 

40

44

40

44

8

 

 

 

4020

 

4030

4035

4040

 

4050

 

45

50

45

50

2.415

2.460

1.8

0.6

 

 

 

4520

 

4530

 

4540

4545

4550

 

50

55

50

55

 

 

 

 

 

5030

 

5040

 

5050

5060

55

60

55

60

 

 

 

 

 

5530

 

5540

 

5550

5560       

60

65

60

65

 

 

 

 

 

6030

 

6040

 

6050

6060

d

D

   Shaft    h 8

Housing H 7

Wall thickness

h

f1

f2

L  & P.N.

MIN

MAX

40

50

60

80

90

95

100

110

120

65

70

65

70

2.415

2.460

8

1.8

0.6

6540

 

6560

 

 

 

 

 

 

70

75

70

75

7040

7050

 

7080

 

 

 

 

 

75

80

75

80

7540

 

7560

7580

 

 

 

 

 

80

85

80-

85

2.385

2.450

9.5

1.8

1.8

8040

 

8060

8080

 

 

 

 

 

85

90

85

90

8540

 

8560

8580

 

 

 

 

 

90

95

90

95

9040

 

9060

9080

9090

 

 

 

 

100

105

100

105

 

10050

 

10080

 

10095

 

 

 

105

110

105

110

 

 

10560

10580

 

10595

 

105110

 

110

115

110

115

 

 

11060

11080

 

11095

 

110110

 

120

125

120

125

1.8

0.6

 

 

12060

12080

 

 

 

120110

 

125

130

125

130

 

 

12560

 

 

 

 

125110

 

130

135

130

135

 

13050

13060

13080

 

 

130100

 

 

140

145

140

145

 

14050

14060

14080

 

 

140100

 

 

150

155

150

155

 

15050

15060

15080

 

 

150100

 

 

160

165

160

165

9.5

 

16050

16060

16080

 

 

160100

 

 

170

175

170

175

 

17050

 

17080

 

 

170100

 

 

180

185

180

185

 

18050

18060

18080

 

 

180100

 

 

190

195

190

195

 

19050

19060

19080

 

 

190100

 

190120

200

205

200

205

 

20050

20060

20080

 

 

200100

 

200120

220

225

220

225

9.5

 

22050

22060

22080

 

 

220100

 

220120

240

245

240

245

 

24050

24060

24080

 

 

240100

 

240120

250

255

250

255

 

25050

25060

25080

 

 

250100

 

250120

260

265

260

265

 

26050

26060

26080

 

 

260100

 

260120

280

285

280

285

 

28050

28060

28080

 

 

280100

 

280120

300

305

300

305

 

30050

30060

30080

 

 

300100

 

300120

P.N.

Shaft

Washer size

Installation size

d +0.25

D -0.25

T -0.05

M ±0.12

h+0.4+0.1

t ±0.2

D1+0.12

WC10

8

10

20

1.5

15

1.5

1

20

WC12

10

12

24

18

24

WC14

12

14

26

20

2

26

WC16

14

16

30

23

30

WC18

16

18

32

25

32

WC20

18

20

36

28

3

36

WC22

20

22

38

30

38

WC24

22

24

42

33

42

WC26

24

26

44

35

44

WC28

25

28

48

38

4

48

WC32

30

32

54

43

54

WC38

35

38

62

50

62

WC42

40

42

66

54

66

WC48

45

48

74

2

61

1.5

74

WC52

50

52

78

65

78

WC62

60

62

90

76

90

Bearing size table ( unit: inch)

Normal Dia.

Shaft  Dia

Housing bore

Installed bearing ID

Wall thickness

h

L & P.N.

d D

Min.

Max.

3/8

1/2

5/8

3/4

7/8

1

1 1/8

1 1/4

1 3/8

1 1/2

1 3/4

1 7/8

3/8

15/32

0.3648
0.3639

0.4694
0.4687

0.3694
0.3667

00500

00510

5/32

0606

0608

 

0612

 

 

 

 

 

 

 

 

7/16

17/32

0.4273
0.4263

0.5319
0.5312

0.4319
0.4292

 

0708

 

0712

 

 

 

 

 

 

 

 

1/2

19/32

0.4897
0.4887

0.5944
0.5937

0.4944 0.4917

0806

0808

0810

 

0814

 

 

 

 

 

 

 

9/16

21/32

0.5522
0.5512

0.6569
0.6562

0.5569
0.5542

 

0908

 

0912

 

 

 

 

 

 

 

 

5/8

23/32

0.6146
0.6136

0.7195
0.7178

0.6195
0.6167

 

1008

1010

1012

1014

 

 

 

 

 

 

 

11/16

25/32

0.6770
0.6760

0.7820
0.7812

0.6820
0.6792

 

 

 

 

1114

 

 

 

 

 

 

 

3/4

7/8

0.7390
0.7378

0.8758
0.8750

0.7444
0.7412

0.0657

0.669

 

1208

 

1212

 

1216

 

 

 

 

 

 

7/8

1

0.8639
0.8627

1.0008
1.0000

0.8694
0.8662

1/4

 

 

 

1412

1414

1416

 

 

 

1624

 

 

1

1 1/8

0.9888
0.9876

1.1258
1.1250

0.9944
0.9912

 

 

 

1612

 

1616

 

 

 

 

 

 

1 1/8

1 9/32

1.1138
1.1126

1.2822
1.2812

1.1202
1.1164

00810

00824

 

 

 

1812

 

1816

 

 

 

 

 

 

11/4

1 13/32

1.2387
1.2371

1.4072
1.4062

1.2452
1.2414

 

 

 

2012

 

2016

 

2020

 

 

2028

 

1 3/8

1 17/32

1.3635
1.3619

1.5322
1.5312

1.3702
1.3664

 

 

 

 

 

2216

 

 

2222

 

2228

 

Normal Dia.

Shaft  Dia

Housing bore

Installed bearing ID

Thickness

h

L & P.N.

d D

Min.

Max.

1

1 1/4

1 1/2

1 3/4

1 7/8

2

2 1/4

2 1/2

3

3 1/2

3 3/4

4 3/4

1 1/2

1 21/32

1.4884
1.4868

1.6572
1.6562

1.4952
1.4914

 

 

5/16

2416

2420

2424

 

 

2432

 

 

 

 

 

 

1 5/8

1 25/32

1.6133
1.6117

1.7822
1.7812

1.6202
1.6164

2616

 

2624

 

 

 

 

 

 

 

 

 

1 3/4

1 15/16

1.7383
1.7367

1.9385
1.9375

1.7461
1.7415

00962

00980

2816

 

2824

2828

 

2832

 

 

 

 

 

 

1 7/8

2 1/16

1.8632
1.8616

2.0637
2.0625

1.8713
1.8665

3016

 

 

 

3030

 

3036

 

 

 

 

 

2

2 3/16

1.9881
1.9863

2.1887
2.1875

1.9963
1.9915

3216

 

3224

 

 

3232

 

3240

 

 

 

 

2 1/4

2 7/16

2.2378
2.2360

2.4387
2.4375

2.2463
2.2415

 

 

 

 

 

3632

3636

3240

 

 

 

 

2 1/2

2 11/16

2.4875
2.4857

2.6887
2.6875

2.4963
2.4915

 

 

 

 

 

4032

 

4040

 

 

 

 

2 3/4

2 15/16

2.7351
2.7333

2.9387
2.9375

2.7457
2.7393

0.0965

0.0991

 

 

 

 

 

4432

 

4440

4448

4456

 

 

3

3 3/16

2.9849
2.9831

3.1889
3.1875

2.9959
2.9893

3/8

 

 

 

 

 

4832

 

 

4848

 

4860

 

3 1/2

3 11/16

3.4844
3.4822

3.6889
3.6875

3.4959
3.4893

 

 

 

 

 

 

 

5640

5648

 

5660

 

4

4 3/16

3.9839
3.9817

4.1889
4.1875

3.9959
3.9893

 

 

 

 

 

 

 

 

6448

 

4606

6476

P.N.

Washer dimension

Installation size

d +0.010

D -0.010

T

M -0.01

h +0.010

t ±0.010

D1 +0.010

WC06

0.500

0.875

0.0660
0.0625

0.692

0.067

0.04

0.875

WC07

0.562

1.000

0.786

1.000

WC08

0.625

1.125

0.880

0.099

1.125

WC09

0.687

1.187

0.942

1.187

WC10

0.750

1.250

1.005

1.250

WC11

0.812

1.375

1.099

1.375

WC12

0.875

1.500

1.192

0.130

1.500

WC13

0.937

1.625

1.286

1.625

WC14

1.000

1.750

1.380

1.750

WC16

1.125

2.000

1.567

0.161

2.000

WC18

1.250

2.125

1.692

2.125

WC20

1.375

2.250

1.817

2.250

WC22

1.500

2.500

2.005

0.192

2.500

WC24

1.625

2.625

2.130

0.7

2.625

WC26

1.750

2.750

2.255

2.750

WC28

2.000

3.000

0.0970
0.0935

2.505

3.000

WC30

2.125

3.125

2.630

3.125

WC32

2.250

3.250

2.755

3.250

PB bearing installing illustration