... ,more information about BTR can be found on our website. main brand:SKF , TIMKEN, NSK, FAG , NTN,KOYO, THK,IKO,NACHImain ... noise inspection 7)appearance inspection8)rust prevention 9)product packagingThe main type of taper roller ball bearing:The size of metric ... 260mmSingle row taper roller bearing (tandem position) d 55-------80mmThe main type of cylindrical roller bearing:The size of single row ...