... vibration 3. low noise 4.high efficiency WP series worm gear box speed reducer Compact structure, high efficiency, mechanical properties, heat exchanger ... form, superior performance, easy maintenance, transmission speed, torque, withstand high overload ability, smooth operation, low noise, durable, probation, safety ... wpwek, wpwed, wpweko, wpwedko, wpeeda, wpeeo WP series worm gear box speed reducer