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What are self-aligning ball bearings?

wallpapers Tech 2020-05-26
Self-aligning ball bearings are ball bearings designed with two rows of 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 bearings are insensitive to angular misalignment of the shaft relative to the housing , which can be caused, for example, by shaft deflection.
In self-aligning ball bearings, the inner ring has two raceways and the outer ring has a spherical raceway, the center of curvature of which coincides with the bearing axis. In this way, the axis of the inner ring, ball and cage can be deflected around the center of the bearing, thereby automatically correcting the misalignment caused by machining or installation errors of the bearing seat and the shaft.
Self-aligning double row ball bearings are designed for applications where severe alignment is caused by installation or shaft deflection. The combination of the concave raceway of the outer ring and the two rows of balls can work within a wide range of contact angles. In addition, it can be properly aligned with the shaft and the assembly without causing undue stress on the rest of the bearing assembly.
Standard self-aligning double row ball bearings have straight holes. However, tapered holes are available on request. It is worth noting that the friction force of self-aligning ball bearings is the lowest among all rolling bearings, which allows it to maintain a low operating temperature even during high-speed operation. In addition, the design allows easy installation and removal.
Find more knowledge on bearings, please go to:  knowledge of bearings.
Spark Bearings (Aka, Wuxi Spark Bearings Co.,Ltd Co., Ltd) is a professional bearings provider with over 10 years experience in producing high quality ball bearings and roller bearings with large categories including spherical roller bearings, cylindrical roller bearings, tapered roller bearings, deep groove ball bearings, self-aligning ball bearings, angular contact ball bearings and thrust ball bearings.
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