Application and Development of Factor bm of Dynamic Load Ratings for Rolling Bearings
The bm is a very important factor in calculation formulas of dynamic load ratings for rolling bearings.It has been more than 30 years since it was introduced to international standard ISO 281:1990.Recently,some global famous bearing companies have adopted new values of bm,making some types of bearings,especially roller bearings,the dynamic load ratings to be increased greatly.However,the research on factor bm in China's bearing industry is still very weak and limited,resulting in a big gap in calculated values of dynamic load ratings between domestic bearings and foreign famous bearings.Therefore,the background,definition,numerical determination and latest development of bm are introduced,so as to provide a reference for bearing manufacturers and users to take the values of bm when calculating the dynamic load ratings.
rolling bearingbasic dynamic load ratingrating lifelife adjustment factorapplicationdevelopment
NETL
NSTL
万方数据
