Angular contact ball bearing retainer

Abstract

The invention discloses an angular contact ball bearing retainer. The angular contact ball bearing retainer comprises a retainer body, wherein the retainer body comprises an inner ring with one end connected with a plurality of inner side passing beams, a U-shaped inner conical pocket groove is formed by every two adjacent inner side passing beams and the inner ring, a middle arc-shaped contact convex surface I and an inner receding surface I which are sequentially connected from outside to inside are arranged in the middle of the groove wall of each inner conical pocket groove, inner arc-shaped contact convex surfaces which are arranged in the width direction of the groove wall of the corresponding inner conical pocket groove are arranged at the two ends of the groove wall of each inner conical pocket groove correspondingly, the retainer body further comprises an outer ring with one end connected with a plurality of outer side passing beams, a U-shaped outer conical pocket groove is formed by every two adjacent outer side passing beams and the outer ring, the outer side passing beams are fixed on the outer surfaces of the inner side passing beams in a one-to-one mode, the inner conical pocket grooves and the outer conical pocket grooves form ball pocket holes, a middle arc-shaped contact convex surface II and an inner receding surface II which are sequentially arranged from outside to inside are arranged in the middle of the groove wall of each outer conical pocket groove, and outer arc-shaped contact convex surfaces which are arranged in the width direction of the groovewall of the corresponding outer conical pocket groove are arranged at the two ends of the groove wall of each outer conical pocket groove correspondingly.

Description

technical field [0001] The invention belongs to the technical field of bearings, in particular to an angular contact ball bearing cage. Background technique [0002] There are mainly two methods of angular contact ball bearings for machine tool spindles: grease lubrication and oil-air lubrication. The two different lubrication methods have their own optimal cage structure design. [0003] The existing angular contact ball bearing cage has the following defects: [0004] 1. The structure of the grease lubricated bearing cage does not change. When it is used for oil-air lubrication, it is easy to generate noise due to the impact of oil and gas on the cage. [0005] 2. The contact friction between the rolling element and the cage is large, and the heat generation is large. [0006] 3. The edge of the cage pocket is easy to scratch the rolling element [0007] 4. The collision position between the rolling element and the pocket of the cage is uncertain, which makes the operat...

AI Technical Summary

Problems solved by technology

[0005] 2. The contact friction between the rolling element and the cage is large, and the heat generation is large

[0006] 3. The edge of the cage pocket is easy to scratch the rolling element

[0007] 4. The position of the collision between the rolling element and the pocket of the cage is uncertain, which makes the operation of the cage unstable

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