TDS Parallel shaft speed reducers provide high torque capability and proven dependability. Type TDS standard features include through hardened single helical gears,tapered roller bearings, large inspection plates, a positive splash system for lubrication, extra wide bearing spans and center bearing supports. All Type TDS units can be assembled with a variety of horizontal and vertical input and output shaft arrangements extending on either side of the speed reducer. Hollow output shafts are also available.