Ball bearing and preparation process thereof

Abstract

The invention discloses a ball bearing and a preparation process thereof. The ball bearing comprises a bearing sleeve, wherein a manufacturing material of the bearing sleeve is placed into a container, a stirrer is started for slow stirring, the stirring speed is 210 revolutions per minute, and after stirring is carried out for 18-22 minutes, the materials can be fully and uniformly mixed for later use; and the mixed materials are placed into a smelting furnace with the temperature of 1,200-1,250 DEG C for smelting, and finally the materials are poured into a mold. According to the ball bearing and the preparation process thereof, the bearing sleeve and a bearing inner ring which are manufactured by processing composite metal are continuously processed by using a lathe and a milling machine, so that the wear resistance of the bearing sleeve and the bearing inner ring in the using process is better, and cracking and the like in the using process are avoided; and after balls are subjected to high-temperature smelting, grinding, polishing and measuring, the deviation of the roundness of the balls cannot exceed 0.008 micron, the diameter deviation of the balls cannot exceed 0.0008 micron, and the finally-formed ball bearing is not prone to rust, extremely high in hardness and good in wear resistance.

Description

technical field [0001] The invention relates to the technical field of ball bearings, in particular to a ball bearing and a preparation process thereof. Background technique [0002] With the progress of society and the development of science and technology, ball bearings are used in many devices and equipment, and these ball bearings mainly use rolling to reduce friction in the process of power transmission and improve the transmission efficiency of mechanical power; [0003] 1. Usually, the traditional ball bearings are not tightly packed during the production process, resulting in poor wear resistance of the ball bearings; [0004] 2. At the same time, the material of the bearing sleeve is usually high-carbon chromium bearing steel, which will rust during long-term use and cause the bearing to be stuck. Contents of the invention [0005] The purpose of the present invention is to provide a ball bearing and its preparation process to solve the problem of low compactness...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a ball bearing and its preparation process to solve the problem of low compactness in the production process proposed in the above background technology, resulting in poor wear resistance of the ball bearing and occurrence of cracks during long-term use. Rust, causing the problem of bearing seizure

Images