After optimization design for bearing material, heat treatment artificial, lubricant condition, the high temperature resistant bearing can meet all the high temperature working environment. After special heat treatment, the high temperature self-aligning roller bearing and ball bearing can be process under the environment below 300oC that be with high quality and high temperature grease. The high temperature resistant bearing is usually product according to common grade tolerance, and bigger clearance than basic unit bearing, so it is not suit to high speed.
11th year 