NEEDLE ROLLER BEARINGS WITH INNER RING

NK,NKS

NK,NKS,RNA49

RNA69

NK,NKS,RNA49,RNA69

 

 

Shaft
Diameter

Bearing Designation

Boundary Dimensions

Basic Load Ratings

Limiting
Speed

d

F

D

B

rS

动

C

静

Co

Oil

mm

mm

Min.

N

rpm

5

+NKI 5/12 TN

5

8

15

12

0.3

3950

4100

32000

+NKI 5/16 TN

5

8

15

16

0.3

5100

5800

32000

6

+NKI 6/12 TN

6

9

16

12

0.3

4500

5000

31000

+NKI 6/16 TN

6

9

16

16

0.3

5900

7100

31000

+NKIS 6 TN

6

10

19

13

0.3

5800

6000

29000

7

+NKI 7/12 TN

7

10

17

12

0.3

4750

5500

29000

+NKI 7/16 TN

7

10

17

16

0.3

6200

7800

29000

+NKIS 7 TN

7

12

22

16

0.6

9600

10400

26000

8

 NKIS 8

8

14

25

16

0.6

14400

13800

24000

9

NKI 9/12

9

12

19

12

0.3

6400

7100

27000

NKI 9/16

9

12

19

16

0.3

9000

11000

27000

NKIS 9

9

15

26

16

0.6

14400

14000

23000

10

NKI 10/16

10

14

22

16

0.3

10100

11500

25000

NKI 10/20

10

14

22

20

0.3

12800

15600

25000

INKIS 10

10

16

28

16

0.6

15700

15800

22000

NA 4900

10

14

22

13

0.3

8500

9200

25000

12

NKI 12/16

12

16

24

16

0.3

11300

13900

23000

NKI 12/20

12

16

24

20

0.3

14400

18800

23000

INKIS 12

12

18

30

16

0.6

16800

17700

21000

NA 4901

12

16

24

13

0.3

9400

10900

23000

NA 6901

12

16

24

22

0.3

16000

21600

23000

15

NKI 15/16

15

19

27

16

0.3

13000

17400

22000

NKI 15/20

15

19

27

20

0.3

16500

23600

22000

INKIS 15

15

22

35

20

0.6

24500

28000

18000

NA 4902

15

20

28

13

0.3

10600

13600

21000

NA 6902

15

20

28

23

0.3

17300

25500

21000

17

NKI 17/16

17

21

29

16

0.3

13500

18700

21000

NKI 17/20

17

21

29

20

0.3

17100

25500

21000

NKIS 17

17

24

37

20

0.6

26000

31000

17000

NA 4903

17

22

30

13

0.3

11000

14600

20000

NA 6903

17

22

30

23

0.3

18600

29000

20000

20

NKI 20/16

20

24

32

16

0.3

15000

22300

18000

NKI 20/20

20

24

32

20

0.3

19000

30500

18000

NKIS 20

20

28

42

20

0.6

28500

36500

15000

NA 4904

20

25

37

17

0.3

21000

25500

17000

NA 6904

20

25

37

30

0.3

36000

51000

17000

22

NKI 22/16

22

26

34

16

0.3

15300

23600

17000

NKI 22/20

22

26

34

20

0.3

19400

32000

17000

NA 49/22

22

28

39

17

0.3

22800

29500

15000

NA 69/22

22

28

39

30

0.3

37500

55000

15000

25

NKI 25/20

25

29

38

20

0.3

21900

34000

15000

NKI 25/30

25

29

38

30

0.3

32500

57000

15000

NKIS 25

25

32

47

22

0.6

33500

43500

13000

NA 4905

25

30

42

17

0.3

23600

31500

14000

NA 6905

25

30

42

30

0.3

29000

59000

14000

28

NKI 28/20

28

32

42

20

0.3

23100

37500

14000

NKI 28/30

28

32

42

30

0.3

34500

63000

14000

NA 49/28

28

32

45

17

0.3

24400

33500

14000

NA 69/28

28

32

45

30

0.3

40500

63000

14000

30

NKI 30/20

30

35

45

20

0.3

24300

41500

13000

NKI 30/30

30

35

45

30

0.3

36500

69000

13000

NKIS 30

30

37

52

22

0.6

36500

50000

12000

NA 4906

30

35

47

17

0.3

25000

35500

13000

NA 6906

30

35

47

30

0.3

43500

71000

13000

32

NKI 32/20

32

37

47

20

0.3

24900

43500

12000

NKI 32/30

32

37

47

30

0.3

37000

73000

12000

NA 49/32

32

40

52

20

0.6

30500

47500

11000

NA 69/32

32

40

52

36

0.6

47000

82000

11000

35

NKI 35/20

35

40

50

20

0.3

26000

47000

11000

NKI 35/30

35

40

50

30

0.3

39000

79000

11000

NKIS 35

35

43

58

22

0.6

39000

57000

10000

NA 4907

35

42

55

20

0.6

31500

50000

11000

NA 6907

35

42

55

36

0.6

48000

86000

11000

 
                 TN=plastic retainer, permissible operational temperature 120℃, 150℃for temporary use ,180℃ for short time only   1)for grease lub, the permiss
                  vible value should be 60% of those in the list
                   +with retaining ring, no lubricating holes or grooves, please add ASR1 before the bearing code if oil holes or grooves are needed for your products.
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