A brass solid spherical roller bearing cage and its forming method

Abstract

The invention relates to a self-aligning roller bearing retainer for a brass entity. The self-aligning roller bearing retainer comprises a retainer body which is integrally formed by machining. The self-aligning roller bearing retainer is characterized in that the retainer body is internally provided with two rows of roller mounting holes which are evenly distributed in a staggered way; the retainer body comprises an intermediate ring and an internal shell nosing cone which extends towards two sides symmetrically from the intermediate ring; the plurality of roller mounting holes are evenly machined in the circumferential direction of the internal shell nosing cone; the axes and the normals of the roller mounting holes intersect at one point; and rollers are arranged in the roller mounting holes and can be used for guiding the retainer independently. The self-aligning roller bearing retainer for the brass entity has the advantages of high bearing load, low noise and vibration, high stability, self-lubrication and self-guiding by the rollers.

Description

technical field [0001] The invention relates to the technical field of bearing cages, in particular to a brass solid spherical roller bearing cage. Background technique [0002] The existing brass cage of self-aligning roller bearings is a cross-shaped structure. The cage includes a middle ring, and there are several lintels on both sides of the ring. There are roller mounting holes between the lintels. The outer diameter of the cage is cylindrical. For example, a self-aligning bearing solid bearing cage disclosed in Chinese patent CN101586628A belongs to this structure. The problem with this design scheme is that the axial positioning of the rollers is incomplete, so rigid ribs must be provided on both sides of the inner ring raceway. In actual use, when the main shaft is inevitably misaligned, it will Severe stress concentration occurs on one side of the roller chamfer, causing premature failure of the entire set of bearings; when the bearing bears a large axial load, it ...

AI Technical Summary

Problems solved by technology

The problem with this design scheme is that the axial positioning of the rollers is incomplete, so rigid ribs must be provided on both sides of the inner ring raceway. In actual use, when the main shaft is inevitably misaligned, it will Severe stress concentration occurs on one side of the roller chamfer, causing premature failure of the entire set of bearings; when the bearing bears a large axial load, it is easy to cause cracks at the oil groove of the rigid rib of the inner ring, resulting in premature failure of the bearing. damage; and the design is restricted by structures such as oil channels, so the reinforced design cannot be applied

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