... precision of speed regulating for speed variator,up to 0.5-1 round2) Large speed-changing range,1:1.4 to ... ,aluminium alloy body;UD1.1,UD1.5,UD2.2,UD3.0,UD4.0,UD5.5,UD7.5,cast iron body9) Mounted way,vertical ... handwhel positionable on either side,Slipping speed to max load at 5%12)Regulation sensibility: 0,5 rpm Basic information,