Bearing sealing ring

Abstract

The invention discloses a bearing sealing ring. The bearing sealing ring comprises a steel ring framework at an outer side and a rubber ring at an inner side, wherein the steel ring framework comprises a top beam, a vertical beam I and a bottom beam; the top beam is horizontally arranged; a middle section of the vertical beam I is bent by 45 degrees; the rubber ring comprises a vertical beam II and a C-shaped part connected with the vertical beam II; the vertical beam II and a lower section of the vertical beam I of the steel ring framework are spliced together; the upper part of the C-shaped part and the bottom beam of the steel ring framework are spliced together; the bottom of the C-shaped part is a sealing ring; and an included angle alpha between the sealing ring and the horizontal line is greater than or equal to 30 degrees but less than or equal to 70 degrees. According to the bearing sealing ring disclosed by the invention, the elastic deformation capacity of the sealing ring can be increased; the service life of the sealing ring is prolonged; clamping ability between the sealing ring and a sealing notch of the bearing outer ring can be increased, and the bearing sealing ring is convenient to mount.

Description

technical field [0001] The invention relates to a bearing sealing ring, in particular to a sealing ring for an automobile driving bearing. Background technique [0002] The bearing sealing ring is the main sealing part in the bearing. It not only keeps the grease in the bearing, but also prevents foreign debris or dust from entering the bearing, which can effectively improve the service life of the bearing. [0003] In the past, the bearing sealing ring was made of rubber as a whole. However, the bearing sealing ring made of rubber is not strong. In order to improve the strength of the bearing sealing ring, a steel ring frame is usually embedded in the rubber body of the bearing sealing ring. [0004] After embedding the steel ring skeleton, the strength of the bearing sealing ring has indeed been greatly improved, but with the increase in strength, the elastic deformation capacity of the bearing sealing ring has been weakened, which increases the difficulty of assembling th...

AI Technical Summary

Problems solved by technology

[0003] In the past, the bearing sealing ring was made of rubber as a whole. However, the bearing sealing ring made of rubber is not strong. In order to improve the strength of the bearing sealing ring, a steel ring skeleton is usually embedded in the rubber body of the bearing sealing ring.

[0004] After embedding the steel ring skeleton, the strength of the bearing sealing ring has indeed been greatly improved, but with the increase in strength, the elastic deformation capacity of the bearing sealing ring has been weakened, which increases the difficulty of assembling the bearing sealing ring , the second is that it is difficult to control the interference between the sealing lip and the bearing ring, because when the interference changes, if the elastic deformation ability is strong, the friction between the sealing lip and the bearing ring will not change significantly , However, if the elastic deformation ability is weak, the friction between the sealing lip and the bearing ring will change significantly if the interference is slightly changed. If the friction is too large, the service life will be significantly affected. If the friction is too small, The sealing performance will be reduced

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