... surface width:φ500×500mm, Material :9Cr2Mo, Exclusive use of FCD mill bearingsc. Way Bearing Lubrication: Grease lubricationd. ... unloading device, relief valve, filter device, liquid level display, the system pressure to control grade functions.6. Thickness ... with current operation box beside, speed, strength, thickness of display function.2. main motor, important electrical equipment and mechanical ...