Bearing retainer

Abstract

The invention discloses a bearing retainer. The bearing retainer is provided with a retainer body and pocket holes which are uniformly distributed in the retainer body, wherein each pocket hole is formed by four straight line segments, and each two line segments are tangent and transitional with each other through an arc section. According to the design of the pocket holes of the retainer, the contact surface between a steel ball and each pocket hole of the retainer is a plane formed by the four straight line segments, and thus the friction among the steel balls and the pocket holes of the retainer is obviously alleviated; and a proper amount of lubricating oil can be stored in the arc transition sections of the four straight line segments in the running process of a bearing, so that the steel balls can be well lubricated in the pocket holes, the friction among the pocket holes and the steel balls can be alleviated, and the service life of the bearing retainer can be prolonged.

Description

technical field [0001] The invention relates to a bearing component, in particular to a bearing cage, which belongs to the field of bearing manufacturing. Background technique [0002] The pockets in the bearing cage are set for the placement of steel balls. In the conventional design, the cage pockets are all spherical inner holes with a diameter slightly larger than the steel balls. When the bearing is running, the steel balls directly contact the overall arc surface of the pockets. , the friction is large; the bearing cage not only plays the role of separating and guiding the steel balls, but also holds the role of grease, but because the pocket is close to the equal diameter of the ball, it acts as a lubricant during the operation of the bearing The lubricating grease is easily thrown out with the rotation of the steel ball, and premature failure and damage of the bearing often occur due to poor lubrication during use. Contents of the invention [0003] In view of the...

AI Technical Summary

Problems solved by technology

[0002] The pockets in the bearing cage are set for the placement of steel balls. In the conventional design, the cage pockets are all spherical inner holes with a diameter slightly larger than the steel balls. When the bearing is running, the steel balls directly contact the overall arc surface of the pockets. , the friction is large; the bearing cage not only plays the role of separating and guiding the steel balls, but also holds the role of grease, but because the pocket is close to the equal diameter of the ball, it acts as a lubricant during the operation of the bearing The lubricating grease is easily thrown out with the rotation of the steel ball, and premature failure and damage of the bearing often occur due to poor lubrication during use.

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