... .long in service R Series Helical Gear Reducer(gearbox,gear box,gear unit,reducer,reductor,gearmotor) Features:It adopts hard tooth ... and long in service life.Installation: flange type, foot type, hollow shaft type,Structure: R(-)....: Foot-mounted solid shaft output. RF ... : Up to 23200Nm R Series Helical Gear Reducer(gearbox,gear box,gear unit,reducer,reductor)