The driving device is installed with a small gear on the output shaft end of a crank pin wheel reducer, worm gear reducer, or gear reducer, and then transmitted to the three to four-stage reduction transmission device that supports the rotation.

The upper part of the main shaft has non-lifting, manual lifting, and manual-electric dual-purpose lifting forms, with a lifting height of 300 millimeters; it can be equipped with an overload torque automatic protection device according to user requirements to ensure the safe operation of the entire equipment.

Single-row ball type rotary support, using advanced four-point contact ball structure, can withstand large axial force, radial force, and overturning moment; this reducer mainly has a large transmission ratio, large transmission torque, compact structure, low noise, stable operation, and no leakage. It is specifically suitable for the supporting products of steel mills in sewage equipment and mud machinery with large load factors.