medium load full protection worm gear worm shaft type slewing drive is used in construction machinery by customers, requiring large self-locking force and resisting large impact loads. Unique Transmission designed this 32 inch non-standard slewing drive to customers according to their requirements, the slewing ring adopts single tooth surface induction quenching to ensure self-locking force and impact load, the worm shaft is nitrogen treatment after processing to ensure impact resistance and long life. Use high-quality tapered bearings to ensure reliable operation of the slewing drive.