Slewing drive is a kind of all-circumferential deceleration transmission mechanism which integrates driving power source. It uses rotary bearing as driving follower and mechanism attachment. By attaching the driving part, driving source and cover on one ring of the inner and outer rings of the rotary bearing, the other ring is regarded as both driving follower and connecting base of the driven working parts. It is the characteristic of the circumferential rotary connector itself. It is equipped with driving power source and main transmission parts efficiently, which makes it a universal deceleration transmission mechanism with the functions of rotation, deceleration and drive, simple structure and convenient manufacture and maintenance. The following article briefly introduces different types of slew drive and their applications, hoping to help you better understand the slew drive.