Xinzhou Bearing is one of the leading providers of China's Bearing Industry and a long-time partner of professional dealers. Xinzhou Bearing is one of the Custom Bearing Manufacturers and world wide Distributors of all types of Bearings,specializing in Ceramic balls, Bearings (Inch Metric Sizes) made from Ceramic (SI3N4/), Stainless (440c/316) or Chrome Steel(SAE52100 steel): Tolerance ABEC1, 3, 5, 7.level. We work directly with our OEMs and Bearing Distributors. Our engineers can help you with bearing, shaft and housing tolerances as well as semiconductor applications, cryogenic applications, extreme hostile environments, and extreme delta T temperatures environments.