spherical roller bearing Excellent Quality and Favorable Price Running Smooth High Abrasion Resistance Long Service Lif Detailed Product Description skf spherical roller bearing1.Types:238series,248series,239series,,230series,240series,231 series ,241series, 222 series ,232series,etc.2.Material:Gcr15-China,(AISI)52100-USA,(DIN)100CR6-Germany3.Retainer:J,K,M,MA,MB,k,4.Clearance:CN,C2,C3,C4,C55. ...