It is used as a support that determines the position of moving parts in relation to other parts of the mechanism, operating on the principle of rolling friction. It consists of outer and inner rings, balls and a stamped cage.
It has a significant high speed, is capable of taking radial as well as axial reversing loads up to 70 per cent of the unused permissible radial load. It is manufactured with a groove along the outer diameter of the outer ring for the setting spring ring.
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