High-inclination small-flange conical roller bearing

Abstract

A high-inclination small-flange conical roller bearing comprises a bearing inner ring, a rolling element and a small flange, wherein an end part of the bearing inner ring extends outwards, so that the small flange is formed; an oil groove is formed between the root part of the small flange and the outer surface of the bearing inner ring; the rolling element is arranged on the outer surface of the bearing inner ring; an end part of the rolling element is just located above the oil groove; an end surface of the rolling element is not contacted with the inner side surface of the small flange, and an acute included angle exists; and the distance between the end surface of the rolling element and the top of the small flange is larger than that between the end surface of the rolling element and the root part of the small flange, so that the top of the small flange doesn't bear impact force of the rolling element. According to the high-inclination small-flange conical roller bearing, the thickness and the strength of the root part of the small flange is increased, and the inclination of the inner side surface of the small flange is increased, so that the top of the small flange doesn't bear the impact force of the rolling element, action force of the rolling element to the small flange is effectively reduced, and flange shattering caused due to design factors during assembly is avoided.

Description

technical field [0001] The invention relates to a bearing, in particular to a tapered roller bearing with a large slope and small ribs. Background technique [0002] At present, the shape of the small ribs of tapered roller bearings is mostly designed such that the inner surface of the small ribs has an inclination relative to the plane of the inner ring, but is parallel to the end surface of the rolling elements. This structural shape makes the vibration of the rolling elements have a great impact on the small ribs. big, such as figure 1 shown. However, because the bearing is a standard part, its structure and size are not modified. After the bearing is inspected and passed, once the small rib of the bearing is found to be broken during assembly, it is considered to be a problem of improper assembly by the customer. In fact, it is related to the small rib. Structure has a lot to do with shape. [0003] After a lot of analysis, it is found that the small rib of the bearin...

AI Technical Summary

Problems solved by technology

[0003] After a lot of analysis, it is found that the small rib of the bearing has the following defects: 1. The shape of the oil groove is not standardized, but it is only indicated that there is no sharp corner, so the uncertainty of the shape of the oil groove leads to a large difference in the force decomposition of the rib; 2. Due to the end surface of the rolling element Parallel to the side of the small rib, all parts of the inner side of the small rib may be subject to impact force. If the rolling element moves axially during assembly, a large impact force will be generated. When the impact force acts on the upper part of the inner side of the small rib , the small ribs will break and fail

Images