... , down roll bearing pedestal, down roll input gear, down roll, glide bearing. Down bearing adopt ... strap drive to CWU worm wheel and pole speed reducer. Upper roll level motion drove by worm ... drive device It composed of motor, hard gear speed reducer, output gear, main motor can tuning in two direction ... , screw3-3. Hydraulic system Composed of Y series motor, gear pump , valves , oil tank, pipe and ...