As the performance level of precision machinery has risen, the range of the applications using ball bearings has become broader, and the demand for higher performance and durability of ball bearings has increased. lndustrial needs for ball bearings having high anti-corrosion technology and the ability to withstand fierce conditions while maintaining the preciseness of ball bearings originally required have also increased. "SMT" brand stainless steel ball bearings are the products to comply with present industrial needs.
AlSl 440C martensitic stainless steel is used for inner rings, outer rings and balls. AlSl 304 austenitic stainless steel is used for retainers, metal shields, and snaprings. Standard material of rubber seals is nitrile butadiene rubber (NBR), and other materials such as fluorinated rubber, etc. are available upon request. As for balls, ceramic balls (Si3N4) are also available.
?AlSl 440C stainless steel is magnetized steel.
?AISI 440C stainless steel is magnetizable. AISI 440C stainless steel may corrode depending on the environments and conditions.