Bearings, Ball Bearing, Roller Bearing manufacturer / supplier in China, offering Micro Electric Motor Bearings Mr52 Mr52zz Mr52-2RS Ssmr52zz/2RS, China Precision Miniature Ball Bearing 639zz 639 2RS 9X30X10 for Industrial Use, Miniature Deep Groove Ball Bearing 629zz 629 2RS for Hydraulic Motor and so on.