Four-point Angular Contact Ball Bearings

Four-point angular contact ball bearings are radial single-row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported (Load ratio). The bearings are separable, i.e. the outer ring with ball and cage assembly can be mounted separately from the 2 inner ring halves. Both inner ring halves of four-point contact ball bearings have a recessed shoulder. This improves oil flow when the bearing is used in combination with a cylindrical roller bearing. In addition, these recesses can be used to facilitate dismounting.

Product parameter

Boundary dimensions
Bearing NO.
15 35 11 0.062 QJ202
17 40 12 0.082 QJ203
17 47 14 0.14 QJ303
20 52 15 0.18 QJ304
25 52 15 0.16 QJ205
25 62 17 0.29 QJ305
30 62 16 0.26 QJ206
30 72 19 0.48 QJ306
35 72 17 0.36 QJ207
35 80 21 0.58 QJ307
40 80 18 0.45 QJ208
40 90 23 0.85 QJ308
45 85 19 0.52 QJ209
45 100 25 1.05 QJ309
50 90 20 0.59 QJ210
50 110 27 1.35 QJ310
55 100 21 0.77 QJ211
55 120 29 1.75 QJ311
60 110 22 1 QJ212
60 130 31 2.15 QJ312

Features of Four-point Angular Contact Ball Bearings

-Accommodates axial loads in both directions

-Less axial space

-These bearings take up considerably less axial space than double row bearings.

-High load-carrying capacity

-A large number of balls are incorporated, giving the bearing its high load-carrying capacity.

Separable design

-The split inner ring leads to easier mounting and dismounting of the bearing.

Improved oil flow

-Limited inner ring deformation when subjected to high clamping forces

Applications of Four Point Angular Contact Ball Bearings

A four-point angular contact ball bearing simplifies machine designs that combine radial, thrust, and moment loads because it can handle all 3 simultaneously. They are primarily used for slow to moderate-speed applications or where oscillatory movement is predominant.

Four-point angular contact ball bearings are used in various applications, for example:

– Agricultural machinery;

– Earthmoving machinery;

– Pumps;

– Industrial machinery for cleaning and bottling;

– Electric motors;

– Fitness machines;

– Machining equipment (steel, glass, marble, wood);

– Automatic opening systems;

– Others.

Company Information

We are a professional bearing exporter in China, producing many bearings in different sizes and sizes. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, spherical ball/roller bearings, and cylindrical roller bearings, tapered roller bearings, angular contact Ball bearings, etc. Bearings can also provide OEM services according to customer requirements. We adhere to strict global standards, which is why we can provide you with a wide range of bearings of world-class quality. We have always adhered to the principle of “integrity-based, quality first, customer foremost.” We are ready to use our sincerity to serve every global customer for long-term and win-win cooperation.