Machined Ring Sealed Needle Roller Bearings NA4900RS
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Machined Ring Sealed Needle Roller Bearings NA4900RS

1.13 years experience of needle roller bearings manufacturing
2.Rich stock, fast delivery ( 3-5 days)
3.Samples available
4.Packing details ( single box packing/industrial packing)
Availability:
  • NA4900RS

  • XSP or OEM

Machined Ring Sealed Needle Roller Bearings NA4900RS


XSP solid ring needle roller bearings have a compact structure, small radial size, and large load capacity. They are suitable for components with limited radial outline size. The assembled G2 needle rollers have a diameter variation of less than 2µm. Except for the full-filled needle roller bearings, high rigidity cages are used to accurately guide the needle roller parallel axis.


Needle roller bearings without inner ring RNA, NK type

Needle roller bearings without inner ring are suitable for components with limited radial dimensions. Since there is no inner ring, the surface of the journal that cooperates with them is a direct rolling surface. It is required that the surface hardness is not lower than HRC60, and the surface roughness Ra value is not greater than 0.63µm. This type of bearing does not limit the axial displacement of the shaft or the housing, and the limiting speed is higher.


Needle roller bearings with inner ring NA, NKI type

Since this type of bearing has no ribs, the inner ring, outer ring, full set of needle rollers and cages can be installed separately, without limiting the axial displacement of the shaft or housing. Because the needle rollers are separated by a cage, friction is reduced, so it can be used in parts with higher speeds.


轴径

Shaft Diameter

轴承型号

Bearing Designation

重量

Mass

近似

Approx.

外形尺寸

Boundary Dimension

基本额定负荷

Basic Load Rating

极限转速

Limiting Speed

单面密封

双面密封

d

Fw F

D

C

B

动Cr

Dynamic

静Cor

Static

脂润滑

Grease

mm

sealed on

one side

sealed on

both side

g

mm

N

Rpm

无内圈

14

RNA   4900 RS

RNA 4900.2RS

16

-

14

22

13

-

4560

4660

13000

16

RNA   4901 RS

RNA   4901.2RS

18

-

16

24

13

-

4950

5800

12000

20

RNA   4902 RS

RNA 4902.2RS

21.5

-

20

28

13

-

5980

9500

10000

22

RNA   4903 RS

RNA   4903.2RS

23

-

22

30

13

-

6050

10100

9000

25

RNA   4904 RS

RNA 4904.2RS

56

-

25

37

17

-

14900

17500

7500

30

RNA   4905 RS

RNA   4905.2RS

60

-

30

42

17

-

16300

21500

6500

35

RNA   4906 RS

RNA 4906.2RS

69

-

35

47

17

-

20050

24900

5500

42

RNA   4907 RS

RNA   4907.2RS

107

-

42

55

20

-

22500

37000

4800

48

RNA   4908 RS

RNA 4908.2RS

154

-

48

62

22

-

33050

50900

4200

52

RNA   4909 RS

RNA   4909.2RS

157

-

52

68

22

-

34800

56800

3900

58

RNA   4910 RS

RNA 4910.2RS

160

-

58

72

22

-

37800

61500

3500

带内圈

10

NA   4900 RS

NA    4900.2RS

24.5

10

14

22

13

14

4560

4660

13000

12

NA   4901 RS

NA  4901.2RS

27.5

12

16

24

13

14

4950

5800

12000

15

NA   4902 RS

NA    4902.2RS

37

15

20

28

13

14

5980

9500

10000

17

NA   4903 RS

NA  4903.2RS

40

17

22

30

13

14

6050

10100

9000

20

NA   4904 RS

NA    4904.2RS

80

20

25

37

17

18

14900

17500

7500

25

NA   4905 RS

NA  4905.2RS

89.5

25

30

42

17

18

16300

21500

6500

30

NA   4906 RS

NA    4906.2RS

104

30

35

47

17

18

20050

24900

5500

35

NA   4907 RS

NA  4907.2RS

175

35

42

55

20

21

22500

37000

4800

40

NA   4908 RS

NA    4908.2RS

252

40

48

62

22

23

33050

50900

4200

45

NA   4909 RS

NA  4909.2RS

290

45

52

68

22

23

34800

56800

3900

50

NA   4910 RS

NA    4910.2RS

295

50

58

72

22

23

37800

61500

3500



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Mobile: +86-17862521589
Email: eddy-xsp@xspzc.com
QQ: 1786840336
Skype: live: eddy-xsp_1
WhatsApp: + 86-17862521589

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