Home Companies DWR Bearing Co., Ltd

Back To Back Angular Contact Bearings / Skf Double Row Angular Contact Bearings

DWR Bearing  Co., Ltd
Active Member

Contact Us

[China] country

Address: 6D/F, #8 Bldg, No. 295 Chang Shou Road, Putuo District, Shanghai, PR China

Contact name:Eric

Inquir Now

DWR Bearing Co., Ltd

Back To Back Angular Contact Bearings / Skf Double Row Angular Contact Bearings

Country/Region china
City & Province shanghai shanghai
Categories Car Chargers
InquireNow

Product Details


High Precision Angular Contact NTN Ball Bearing QJ311 Series With Less Coefficient Friction

 

 

Detailed Product Description

 

Angular contact ball bearing can withstand radial load and axial load simultaneously, as well as the pure axle loads. They have higher limit speed. High precision and high speed bearings usually take 15 degrees contact Angle. The contact angle decide the capacity of axial load. Retainers are made of brass, synthetic resins or others subject to individual bearing features and application conditions.

Single-row angular contact ball bearings can accommodate axial load in one direction, if enduring radial load, it will raise additional axial force. And only limited axial displacement of the shaft or housing in one direction. The contact angle of angular contact ball bearings is 40, so you can afford a large axial load. Design of angular contact ball bearing is non-separable, shoulder height on both sides of the inners and outer rings are different. In order to increase the bearing load capacity, lower one side of the shoulder, so that the bearing can be mounted into more balls.

Pairs of angular contact ball bearings can accommodate radial loads as the principal combined radial and axial bi-directional load or under purely radial load. Tandem configuration can only take a single direction axial load, other configurations can be subjected to either direction of axial loads. This type of bearings are generally submitted by manufacturers combine matching users, pre-loading interference after installation, rings and balls of steel in the axial pre-load state, thus improving the supporting stiffness and running accuracy of bearing the whole group as a single.

 

Features of angular contact ball bearing:

 

(1) Angular contact ball bearings are particularly suitable for carrying combined (axial and radial) loads. Sometimes, they also can carry pure axial load and operate in higher speed. Under radial load, axial component force will be produced which must be counteracted. So the bearings are normally adjust against a second bearing.


(2) Single row angular contact ball bearings can carry axial load acting in one direction only. In many applications, angular contact ball bearings in pairs or muti-arrangement should be used. The axial load carrying capacity of angular contact ball bearings increase with the increase of contact angle.


(3) Angular contact ball bearings have raceways in the inner and outer rings that are displaced with respect to each other in the direction of the bearing axis. This means that they are designed to accommodate combined loads, i.e.simultaneously acting radial and axial loads.

 

 

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

5. variations of structure

 

Hot Products

7210CDGA/P4 Angular Contact Thrust Bearing , Bearing Steel Skf Angular Contact Bearing Bearing ...
High Precision Angular Contact NTN Ball Bearing QJ309 Series With Less Coefficient Friction Detailed ...
High Precision Angular Contact NTN Ball Bearing QJ213 Series With Less Coefficient Friction Detailed ...
High Precision Angular Contact NTN Ball Bearing QJ306 Series With Less Coefficient Friction Detailed ...
High Precision Angular Contact NTN Ball Bearing QJ311 Series With Less Coefficient Friction Detailed ...
High Precision Angular Contact NTN Ball Bearing QJ322 Series With Less Coefficient Friction Detailed ...