Retainer of deep groove ball bearing

Abstract

The invention relates to the technical field of processing of bearing parts, particularly to a retainer of a deep groove ball bearing. Aimed at the defect that grooveS in the end face of a traditional deep groove ball bearing solid retainer cannot firmly lock ballS, the rivet-free radial boring crown-shaped solid retainer is characterized in that holes are radially bored in the external diameter of the retainer of the deep groove ball bearing; a proper hold depth is reserved at a B part, the retainer is shaped like a stamping crown-shaped retainer, and the wall at the B part is relatively thick; during assembly, the bearing is horizontally placed on a platform of a pressure machine; rolling bodies are separated at equal intervals, are arranged below the retainer, and are subjected to press fitting through the pressure machine; pockets can have elastic deformation, so that assembly and axial locking of the rolling bodies are facilitated; after assembly, the bearing is limited through inner and outer grooves in the radial direction, and the retainer is not liable to fall off; and the balls are locked through utilizing crown-shaped elastic interference locking openings, the technology is shortened, materials are saved, the strength is improved, the service life is prolonged, and the precision requirement is met.

Description

technical field [0001] The invention relates to the technical field of bearing component processing, in particular to a deep groove ball bearing cage. Background technique [0002] Deep groove ball bearings require high precision, are suitable for high-speed operation, and meet the production standards of high-precision bearings. The traditional deep groove ball bearing solid cage with rivet structure is radially bored from its outer diameter, and the cage is guided by a ring rib or steel ball. In this cage, the two butt-joint bodies are fixed by rivets even. [0003] Chinese Invention Patent [Application No.: 201110151188.6 Application Date: 2011.06.08] discloses a new type of cage for deep groove ball bearings. Under the condition that the overall strength of the cage is not affected, the pocket holes are drilled twice. The weight of the cage is reduced, and the limit speed of the bearing is increased; the moment of inertia of the cage is reduced, and the operation is mo...

AI Technical Summary

Problems solved by technology

The cage of this invention has high rigidity and good wear resistance, but this connection structure has the following disadvantages: when the rivet is not perpendicular to the plane, the frame body will move radially, and the rivet is easy to fall off; gaps are likely to occur between the two frame bodies , there will be noise during the working process; the use of rivets increases the production cost; due to the closed structure, it is difficult for the guide surface to be lubricated during grease lubrication, so wear and tear often occur, and it is more serious when the inner guide is used, etc.

[0005] For ultra-light series bearings, another type of cage is an open end rivetless structure. When the cage is assembled from the axial bore on the end face, in order to prevent the cage from falling off, a lock ball is chiseled on the end face of the cage, but due to the operation If the level is different, the lock ball will not be firm, and the chiseling and printing process will be inconvenient, so it is necessary to improve its structure