These models mount a clutch and brake on the input shaft of a worm reducer to provide output from the speed reducer.The input is transmitted from a V pulley by belt. The V pulley at the input is installed as standard, so simply connect it to a drive with a belt and install the speed reducer to complete the mounting. No troublesome centering or processing is needed. Self-inertia is kept low by integrating the unit, so the efficiency of starting and stopping is good. It can be combined with a speed changer for a wide range of speed changes, and excellent performance can be achieved in many applications, such as 360°rotation stop of the output shaft.