... 2.samples available 3.Id size 20-20 high quality original Cylindrical Roller BearingsCylindrical roller Bearing Cylindrical roller Bearing roller touches ... the raceway linearly with high radial loads and is suitable for high speed .The rollers are guided by rib ... Type Track Rollers CF,CR,NATR,NATV,NAST,STO,RSTO high quality SL series original Cylindrical Roller Bearings