Backstop Device with Bearing Support .

NDZ (NJZ) are Tianiu contact backstops for low-speed shafts with their own bearing support, a filter port, an oil level gauge and labyrinth lubrication channels. The backstop is mounted directly on the drive pulley shaft or on the reducer shaft, and the reaction torque is taken by a torque arm resting against a stop. Compared with the FND series, the manufacturer states higher overrunning speed, torque, precision and service life. 12 sizes from NDZ160 to NDZ10000: backstop torque 16,000–1,000,000 N·m, bore 100–480 mm, inner race speed 70–150 rpm, weight 98–4,442 kg.