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Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are available open or sealed. 

The center of curvature of the outer raceway surface is identical to the center of the bearing, so it has the same self-aligning function as the self-aligning ball bearing.

When the shaft and outer casing are deflected, they can adjusted automatically without increasing the bearing load. Spherical ball bearing can withstand radial loads and axial loads in both directions. The radial load capacity is large, and it is suitable for heavy load and impact load. The inner ring inner diameter is tapered bore bearing that can be mounted directly. Or use the adapter sleeve and the removal cylinder to mount on the cylindrical shaft.

The cage uses steel stamping cage, polyamide forming cage and copper alloy cage.

Can withstand large radial loads while also withstanding a certain axial load. This type of bearing outer ring raceway is spherical, so it has a self-aligning performance. When the shaft is bent or tilted so that the center line of the inner ring is inclined relative to the center line of the outer ring by no more than 1°to 2.5°, the bearing can still work.

The inner diameter of the self-aligning ball bearing is cylindrical or conical. The conical inner bore has a taper of 1:12 or 1:30.

In order to enhance the lubrication performance of the bearing, an annular oil groove and three oil holes are machined on the outer ring of the bearing.

Bearing features

Accommodate static and dynamic misalignment

The bearings are self-aligning like spherical roller bearings or CARB bearings.


Excellent high-speed performance

Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds.


Minimum maintenance

Because of low heat generation, the bearing temperature is lower, leading to extended bearing life and maintenance intervals.


Low friction

Very loose conformity between balls and outer ring keeps friction and frictional heat at low levels.


Excellent light load performance

Self-aligning ball bearings have low minimum load requirements.


Low noise

Self-aligning ball bearings can reduce noise and vibration levels, for example, in fans.

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