BearingsBearingsHigh precision, fast speed, long life, uniformly load distributed, can withstand high thrust loads.Needle Roller PIN Types and FeaturesSUJ2JIS ​high carbon chromium bearing steel, this product adopts Japan SUJ2 bearing special steel full hard HRC58-61 has the wear resistance of the bearing and strengthens the thimble steel workability, the flat tip can be directly processed and used, the mold is higher than SKD -61 (HRC52) 2-3 times all hardware.Manufacturing methodThe quality of bearing steel smelting is very high. It is necessary to strictly control the content of sulfur, phosphorus, hydrogen and the quantity, size and distribution of non-metallic inclusions and carbides, because of the number of non-metallic inclusions and carbides. The size and distribution of the bearing steel have a great influence on the service life of the bearing steel. The failure of the bearing is often caused by the expansion of micro-cracks generated around large inclusions or carbides.The main process for producing bearing steel is continuous casting. The electric furnace smelting + electroslag remelting process smelting, and a small amount of vacuum induction + vacuum self-consumption double vacuum or + multiple vacuum self-consumption process to improve the quality of bearing steel.