... Smooth,Silent Transport Systm MODEL RATIO BALL BAERING LINE R9-10F5.1:17+1BB 0.12/150,0.15/ ... 150,0.30/100 6/210,8/170,10/140 R9-40F5.5 : 1 0.30/180,0.35/ ... ,0.40/100 8/220,10/165,12/130 R9-50F 0.35/180,0.40/140,0.50/ ... 100 10/275,12/220,15/160 R9-60F4.1 : 1 0.40/320,0.50/170 ... ,0.60/100 16/330,20/220,24/170 R9-70F 0.40/300,0.50/200,0.60/ ... 140 20/250,25/200,30/150 R9-80F 0.40/400,0.50/250,0.60/ ...