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self-aligning ceramic ball bearings is use ceramic balls and need minimal adjustment. It is most commonly used in applications that require a bearing with a large rotation angle (more than 10000 degrees) and applications where rapid movement is required (one revolution per minute)

The inner ring is free to turn, but the outer race cannot move axially because of the interference generated between this retainer part and the outer ring’s raceways. This type of bearings needs very little additional clearance for lubricant for reduced frictional protection.