Standard Bearing

Standard Bearing

Needle roller bearings with three-point contact ball bearings withstand heavy radial loads and bidirectional axial loads at the same time during high-speed rotation.

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Product Details

Needle roller bearings with three-point contact ball bearings withstand heavy radial loads and bidirectional axial loads at the same time during high-speed rotation.

●Noninterchangeable inner rings are separated at the center of the ball raceway surface, and must be firmly tightened against shaft in the axial direction.

●Axial clearance is 0.1-0.3 mm.

●When the axial load exceeds 25% of the radial load, the radial load will be induced onto the angular contact ball bearing and the bearing life will be affected. Therefore, the relationship between the two loads must be carefully considered.


Principal dimensions

Basic load ratings

Fatigue load limit

Speed ratings

Designation

radial dynamic

radial static

axial dynamic

axial static

radial

axial

Reference speed

Limiting speed

ID

OD

H

C

C

C 0

C

C 0

P u

P u

mm

kN

kN

r/min

12

24

17.5

16

8.09

9.65

2.07

1.92

1.14

0.083

22000

26000

NKIB 5901

15

28

20

18

11.2

15.3

2.27

2.37

1.83

0.099

19000

22000

NKIB 5902

17

30

20

18

11.4

16.3

2.24

2.74

1.96

0.116

18000

20000

NKIB 5903

20

37

25

23

21.6

28

3.79

4.21

3.35

0.176

15000

17000

NKIB 5904

22

39

25

23

23.3

32

4.14

4.93

3.9

0.205

14000

15000

NKIB 59/22

25

42

25

23

24.2

34.5

4.24

5.26

4.15

0.224

13000

15000

NKIB 5905

30

47

25

23

25.5

39

4.54

6.32

4.65

0.268

11000

13000

NKIB 5906

35

55

30

27

31.9

54

5.83

8.42

6.7

0.355

9500

11000

NKIB 5907

40

62

34

30

42.9

71

7.17

10.9

8.8

0.467

8000

9500

NKIB 5908

45

68

34

30

45.7

78

7.47

12

9.65

0.513

7500

8500

NKIB 5909

50

72

34

30

47.3

85

7.74

13.7

10.6

0.579

7000

8000

NKIB 5910

55

80

38

34

57.2

106

9.27

16.7

13.2

0.697

6300

7000

NKIB 5911

60

85

38

34

60.5

114

9.58

18

14.3

0.77

6000

6700

NKIB 5912

65

90

38

34

61.6

120

9.96

19.2

14.6

0.816

5600

6300

NKIB 5913

70

100

45

40

84.2

163

13.2

25

20.8

1.05

5000

5600

NKIB 5914


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