Slewing bearing used for transmitting device

Slewing bearings are widely used in launching devices, and the stability is further improved.

The invention discloses a slewing bearing used for a transmitting device, belonging to the technical field of slewing bearings. The slewing bearing comprises an outer rolling ring, an inner rolling ring, an inner gear ring and a filling cup, wherein the section of the inner rolling ring is in an L shape, and a plurality of through holes are uniformly distributed on an L-shaped platform; the inner gear ring and the upper end face of the inner gear ring are connected into an integral through attachment bolts, and steel balls for realizing slewing and axial and radial load bearing are annularly distributed between the joint part of the upper end face and the lower end face of the inner gear ring and the inner annular wall of the outer rolling rind; an isolating block and a sealing belt are also arranged on the inner gear ring; the pressure of the inner gear ring on the steel balls can be controlled through the attachment bolts connected with the upper end face and the lower end face of the inner gear ring through the L-shaped inner rolling ring, and the pressure of the inner gear ring on rolling balls can be adjusted and controlled, thus outer ring slewing and axial and radial load bearing are realized, the bearing capacity of the slewing bearing and the bearing capacity of people are both considered, and the high operating accuracy is ensured. The invention has the advantages of solving the problems of great slewing gap jumping, large backlash and poor rigidity of the slewing bearing in a servo system, preventing dust from entering a roller path and preventing grease overflowing.