Holder-free bearing

Abstract

The invention provides a retainer-free bearing which comprises a bearing inner ring and a bearing outer ring, the bearing outer ring is coaxially limited on the outer side of the bearing inner ring, and a plurality of rolling bodies are arranged between the bearing inner ring and the bearing outer ring; a plurality of first grooves are formed in the outer circumference of the bearing inner ring in the axial direction, and / or a plurality of second grooves are formed in the inner circumference of the bearing outer ring in the axial direction; the rolling body is arranged in the first groove, and / or the rolling body is arranged in the second groove. According to the retainer-free bearing disclosed by the invention, the first groove or the second groove for mounting the rolling body is formed in the outer side of the bearing inner ring or the inner side of the bearing outer ring to form a raceway and a limiting structure of the rolling body, and the retainer does not need to be independently arranged, so that bearing failure caused by damage of the retainer is avoided.

Description

technical field [0001] The invention belongs to the technical field of bearings, and in particular relates to a cageless bearing without a cage. Background technique [0002] Bearings are commonly used parts in mechanical rotation. Common bearings usually combine rolling elements and cages to form rolling element assemblies, which are distributed in the raceway formed by the inner ring and the outer ring. The cage is used to isolate the rolling elements. body and keep it in the bearing. When the rolling bearing is working, especially when the load is complex and rotates at high speed, the cage has to bear a lot of centrifugal force, shock and vibration. There is a large sliding friction between the cage and the rolling elements, and a lot of heat, force and heat are generated. The combined effect will lead to cage failure, and in severe cases, the cage will be burned and broken, resulting in bearing damage and failure. SUMMARY OF THE INVENTION [0003] The purpose of the...

AI Technical Summary

Problems solved by technology

When the rolling bearing is working, especially when the load is complex and rotates at high speed, the cage has to bear a lot of centrifugal force, shock and vibration, there is a large sliding friction between the cage and the rolling elements, and a lot of heat, force and heat are generated The result of the joint action will lead to cage failure, and in severe cases, the cage will be burned and broken, resulting in bearing damage and failure

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