Cam follower bearing 1) Metric size and inch size 2) Large range 3) Good quality and comptitive price Cam follower bearing1) Metric series ... and inch series:Matric series: STO, RSTO, NA22...2RS, RNA22...2RS, ... ...PP, KRE...PP, KRV, KRV...PP, KRVE...PP, NUKR, ETCInch series: CRY...V, CRY...VUU, ETC, CR, CRH2) Large range : ...