... ,VV,DU, DUU); Miniature bearingInch: R series, 1600 series, RL seriesB) Spherical roller bearing:22200, 22300, 22300, 23000, 23100, ... 2) Big coefficient of friction,it is not suitable for high speedFunction:Automotive engine, transmission, pumps, crawler excavators wheel, ... as a renowned supplier to the automotive industry of high-precision products and systems for engines, transmissions and chassis ...