... high temperature rise 3.good seal performance china tension pulley bearing Corresponding Type: VKM13100,VKM13201,F-121287.5,QTT100,S400 ,S507,IR ... 0829.19 ,08.29.19,0829.54,GT80260,F-121287.1,F-39752.2,F-120959.1.1, The material of inner rings ... of high abrasive resistance, bounce impact force and inflaming retarding.china tension pulley bearing • Tensioner & Idler Bearings • Clutch Release Bearings • ...