KOYO Bearing

NA4903 KOYO Needle Roller Bearing

KOYO BEARING

NEEDLE ROLLER BEARINGS

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KOYO BEAIRNG

Shaft

Dia.

dDBFw 

rsย min.

s(1)Bearingย ย ย ย DesignationLoadย RatingsFatigue

Loadย Limit

Cu

Speed RatingsApprox.

Wt.

DynamicStatic
CC0GreaseOil
mm

in

mm

in

mm

in

mm

in

mm

in

mm

in

mm

in

 kN

lbf

kNmin-1kg

lbs

17

0.6693

17

0.6693

29

1.1417

20

0.787

21

0.8268

0.3

0.012

1.5

0.059

NKJ17/20A18.1

4070

23.9

5370

4.2514000210000.059

0.13

 17

0.6693

30

1.1811

13

0.512

22

0.8661

0.3

0.012

1

0.039

NA490312.2

2740

16.4

3690

2.5013000200000.04

0.088

 17

0.6693

30

1.1811

23

0.906

22

0.8661

0.6

0.024

1

0.039

NA6903A19.8

4450

30.6

6880

4.7513000200000.084

0.185

 17

0.6693

37

1.4567

20

0.787

24

0.9449

0.6

0.024

1

0.039

NKJS17A29.1

6540

32.8

7370

5.3013000200000.108

0.238

20

0.7874

20

0.7874

32

1.2598

16

0.63

24

0.9449

0.3

0.012

1.5

0.059

NKJ20/16A16.2

3640

24.3

5460

3.7012000180000.053

0.117

 20

0.7874

32

1.2598

20

0.787

24

0.9449

0.3

0.012

1.5

0.059

NKJ20/20A19.3

4340

30.3

6810

4.8012000180000.067

0.148

 20

0.7874

37

1.4567

17

0.669

25

0.9843

0.3

0.012

1.5

0.059

NA490421.3

4790

25.5

5730

6.7512000180000.084

0.185

 20

0.7874

37

1.4567

30

1.181

25

0.9843

0.3

0.012

1.5

0.059

NA6904A36.6

8230

51

11500

7.9512000180000.133

0.293

 20

0.7874

42

1.6535

20

0.787

28

1.1024

0.6

0.024

1

0.039

NKJS20A30.3

6810

38.4

8630

6.1511000160000.13

0.287

22

0.8661

22

0.8661

34

1.3386

16

0.63

26

1.0236

0.3

0.012

1.5

0.059

NKJ22/16A16.6

3730

25.7

5780

3.9511000170000.058

0.128

 22

0.8661

34

1.3386

20

0.787

26

1.0236

0.3

0.012

2

0.079

NKJ22/20A19.7

4430

32

7190

5.0511000170000.071

0.157

 22

0.8661

39

1.5354

17

0.669

28

1.1024

0.3

0.012

1.5

0.059

NA49/22A23.3

5240

29.6

6650

4.5510000160000.089

0.196

 22

0.8661

39

1.5354

30

1.181

28

1.1024

0.3

0.012

1

0.039

NA69/22A30.6

6880

50.7

11400

7.8510000160000.163

0.359

25

0.9843

25

0.9843

38

1.4961

20

0.787

29

1.1417

0.3

0.012

2

0.079

NKJ25/20A23.4

5260

36.4

8180

5.809800150000.086

0.19

 25

0.9843

38

1.4961

30

1.181

29

1.1417

0.3

0.012

2

0.079

NKJ25/30A29.8

6700

56.4

12700

8.709800150000.13

0.287

 25

0.9843

42

1.6535

17

0.669

30

1.1811

0.3

0.012

1.5

0.059

NA490524.3

5460

31.7

7130

4.909700150000.099

0.218

 25

0.9843

42

1.6535

30

1.181

30

1.1811

0.3

0.012

1.5

0.059

NA6905A39.7

8920

59.6

13400

9.309700150000.178

0.392

 25

0.9843

47

1.8504

22

0.866

32

1.2598

0.6

0.024

1.5

0.059

NKJS25A36

8090

36.2

8140

7.409200140000.174

0.384

28

1.1024

28

1.1024

42

1.6535

20

0.787

32

1.2598

0.3

0.012

2

0.079

NKJ28/20A24.8

5580

40.4

9080

6.458800140000.104

0.229

 28

1.1024

42

1.6535

30

1.181

32

1.2598

0.3

0.012

2

0.079

NKJ28/30A35.6

8000

64.3

14500

9.958800140000.156

0.344

CMTG BEARING CO.,LIMITED. ย has been engaged in bearing industry for many years, we provide a wide selections of brands, includingย FAG bearing,ย SKF bearing,NSKย bearing,Nachi bearing, TIMKEN bearing, THK Linear Guide and Linear Block โ€ฆect.

Bearing typies including standard bearing and non-standard bearings, linear bearings, automotive bearings, large bearings, railway bearings,spherical plain bearings, high temperature,super-precision bearings, as well as some rare types customized to your need.

Contact us if any bearing in demand . we will check and revert ASAP.

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