... worm gear reducer 2:CE,ISO certifications 3:Torque-arm mounted 4:Quenched and grounded gears and shaft 5:Metalurg Generall introduction: worm gear reducer ... The HS series gearbox, are novel transmission device and composed of Y series motor, helical gear, Gelisen arc cone gear and worm gear ... allowed torque and weight list of HS reducer: Model37475767778797Structure form S,SA,SF,SAF, ...