61824 deep groove ball bearing

Rolling bearings are often used in our daily life. Rolling bearings are mainly composed of outer rings, inner rings, rolling bodies and retainers. For rolling bearing ring and rolling body, material selection is very important. The two parts can determine the performance of rolling bearing. We can choose according to the needs, and conform to the material of rolling bearing ring and rolling body. 1. High carbon chromium bearing steel The vast majority of bearing rings and rolling bodies are made with special steel. High carbon chromium bearing steel (GCr15 and GCr15SiMn and ZGCr15 and ZGCr15SiMn) are used to make the rings and rolling bodies. The hardness of the parts is as follows: The rings and rollers made with GCr15 and ZGCr15 are HRc61~65, and the steel ball is HRc62~66. The rings and rollers made of GCr15SiMn and ZGCr15SiMn materials are HRc60~64, and the steel ball is HRc60~66. The bearings made of high carbon steel chromium bearing steel are generally applicable to the ran…