Drawn Cup Needle Roller Bearings are widly used in gear-box, transfer case, brake system, outboard engine, power tools, cope machine, fax machine, paper feed equipment and various instruments. Pls kindly check the following:HK SERIES SIZE: HK0408TN~HK6032BK SERIES SIZE: BK0408TN~BK6032HK-RS/2RS SERIES BK-RS/2RS SERIES F, FH SERIESMF, MFH SERIESFY, MFY SERIESSCE, BA SERIES