... cementation processing completely.2:High precision on gear and gear shaft.3:Small volume with big torque. ... 90,110,130Ratio:5,7.5,10,15,20,25,30,40,50,60,80,100Color: ... Blue/Silver WhiteMaterial:Aluminium AlloyWorm Gear- Cooper-10-3Worm-20CrMnTi with carburizing and ... B5,B14Lubricant:Synthetic & MineralProduct Pictures:Gear Box with flange: Gear Box with motor:Gear Box with motor,clutch & ...