Machined Ring Double Row Needle Roller Bearings NA6900
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Machined Ring Double Row Needle Roller Bearings NA6900

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:
  • NA6900

  • XSP or OEM

Machined Ring Double Row Needle Roller Bearings NA6900


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.


轴承型号

Bearing Designation

外形尺寸(mm)

Boundary Dimensions

基本额定负荷

Basic Load Rating

(N)

极限转速

Limiting Speed

(Rpm)

重量

Mass(g)

现行型号

Current Designation

原型号

Original Designation

 

d

 

D

 

B

动 Cr Dynamic

静 Cor Static

脂润滑

Grease

近似

Approx.

NA 6900

6254900

10

22

22

8281

11612

23700

38.4

NA 6901

6254901

12

24

22

11647

17052

20000

44.5

NA 6902

6254902

15

28

23

13100

20900

18800

61.6

NA 6903

6254903

17

30

23

14400

24900

17000

68.2

NA 6904

6254904

20

37

30

22500

38400

14400

130

NA 6905

6254905

25

42

30

19300

31750

13832

138

NA 6906

6254906

30

47

30

43500

71000

13000

152

NA 6907

6254907

35

55

36

26000

60500

11134

301

NA 6908

6254908

40

62

40

64000

112000

8567

401

NA 6909

6254909

45

68

40

61500

123500

8052

479

NA 6910

6254910

50

72

40

68000

123500

7526

457

NA 6911

6254911

55

80

45

82560

172000

7156

760

NA 6912

6254912

60

85

45

88500

186000

6022

798

NA 6913

6254913

65

90

45

87600

194500

6022

821

NA 6914

6254914

70

100

54

121000

263000

5111

1326

NA 6915

6254915

75

105

54

128000

272000

5111

1429

NA 6916

6254916

80

110

54

130500

280600

5050

1510

NA 6917

6254917

85

120

63

166000

400000

4600

2200

NA 6918

6254918

90

125

63

172000

425000

4400

2310

NA 6919

6254919

95

130

63

174000

440000

4200

2500

NA 6920

6254920

100

140

71

176000

465000

4000

3695



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Mobile: +86-17862521589
Email: eddy-xsp@xspzc.com
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