Made of high-quality aluminumalloy, light in weight and non-rusting, large in output torque, smooth in running and low in noise, can work long time in dreadful conditions, high in radiating efficiency, good-looking in appearance, durablt in service life and small in volume, suitable for omnibearing installation.

1. Material:    Housing----alu dia casting, CNC machining
                        worm-----stannum bronzed alloy, cnc horbing machining
                        worm shaft---20CrMnTi,  56-62HRC hardness with thickiness 0.5mm carburization layer.
                        bearing---C&U, NSK
                        seal ----NFK
                        oil ---MINERAL OIL/ SYNTHETIC OIL

2. Speed ratio: 7.5, 10,15,20,25,30,40,50,60.80,100