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High Precision Angular Contact Thrust Ball Bearings Less Coefficient Friction

DWR Bearing  Co., Ltd
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DWR Bearing Co., Ltd

High Precision Angular Contact Thrust Ball Bearings Less Coefficient Friction

Country/Region china
City & Province shanghai shanghai
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Product Details

High Precision Angular Contact NTN Ball Bearing QJ309 Series With Less Coefficient Friction

 

 

Detailed Product Description

 

Angular Contact Ball Bearing, which is similar to other ball bearings, angular contact ball bearing are compose of inner and outer races, ball complement and bearing cage; however, different to other ball bearings like a deep groove ball bearing, an angular contact ball bearing is designed with axially asymmetric race.

 

As a result, angular contact ball bearings are more suitable for supporting "combined loads" (loading in both the radial and axial directions); pure axial-load supporting in one direction is also possible. Generally speaking, the supporting capability for an axial load; and at the same time, the smaller the supporting capability for a radial load.
According to angular contact ball bearing manufacturers, single-row, and double-row angular contact ball bearings are both popular ones in the market. A single row angular contact ball bearing is suitable for carrying axial-load acting in one direction only; as a result, they are usually used in pairs or multi-arrangement in many applications. A double row angular contact ball bearing, however, is suitable for both an axial-load and a radial-load in both directions.

 

Feature:

 

Angular Contact Ball bearings are composed of Inner rings,Outer Rings,Balls and Cage.
1. Ring 's Material: Bearing Steel ZGCr15/GCr15
2. Balls' Material: Carbon chromium steel/Si3N4
3. Cage Material: Phenolic,Nylon,Plastic,Brass etc.
4. Angle: C -15 contact angle, AC-25 contact angle, B-40 contact angle
5. Tolerance Class: ABEC7,ABEC9 (P4,P2)
6. Preload: A-Light Preload , B-Medium Preload, C-Heavy Preload

 

Application:

 

Single row angular contact ball bearings, machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, dividing head, filling machine, low noise type cooling tower, electrical equipment, coating equipment, machine tool trough plate, arc welding machine.

Double row angular contact ball bearing, oil pump, roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery, planetary reducer, extraction equipment, cycloid reducer, food packaging machinery, electric welding machine, electric, square box, gravity type spray gun, wire stripping machine, axle shaft equipment, chemical machinery, testing analysis

 

 

The size includes

(0)2 series and (0)3 series

 


Product Show:

 

some of them are listed below

 

Boundary dimensions(mm)

Basic load ratings(kN)

Limiting speeds(rpm)

Mass(Kg)

Bearing Number

d

D

B

Cr

Cor

Grease

Oil

(Approx.)

HDBB

NTN

40

80

18

40.5

37

6700

9000

0.391

QJ 208

QJ208

65

120

23

90

83

4300

5600

1.2

QJ 213

QJ213

120

215

40

280

275

2200

3200

6.49

QJ 224

QJ224

30

72

19

44.5

31.2

6700

9000

0.42

QJ 306

QJ306

55

120

29

115

86.5

4000

5300

1.48

QJ 311

QJ311

110

240

50

328

345

2000

3000

12.4

QJ 322

QJ322

 

Competitive Advantage

1. Quality level: reach the same level as the Japanese and European bearings

2. Less coefficient of friction

3. High limiting speed

4. Large size range

 

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