china tension pulley bearing 1.with the features of high working speed 2.high temperature ... Type: VKM13100,VKM13201,F-121287.5,QTT100,S400 ,S507,IR-9811 ,IR-9890,CR1692,F-121287 Size: d13 (di 8.2X8 ... ,08.29.19,0829.54,GT80260,F-121287.1,F-39752.2,F-120959.1.1, The material of inner rings, outer rings ...