... can also supply very good motors. We manufacture worm gearbox (NMRV), we can also supply very good ... aluminum alloy die cast gearbox2) High accuracy worm gear and worm shaft3) Less noise and lower temperature increase4 ... ,063,075,090,110,130Material for NMRV gearbox:Worm wheel: inner is nodular cast iron, outside is ... , Xiaoshan District, Hangzhou City, Zhejiang Province, China. Worm Gearbox with Motor