The commonly used structural forms of slewing bearings are single-row, double-row four-point contact ball slewing bearings, double-row angular contact inference ball slewing bearings, crossed cylindrical roller and crossed tapered roller slewing bearings, three-row cylindrical roller slewing bearings, ball bearings. Column hybrid slewing bearing and other different structural forms.The above-mentioned various types of bearings are divided into different structures such as toothless type, external gear type, and internal gear type according to whether they have gears and the distribution parts of the gears.

A compact, economical alternative to multiple bearing arrangements

Slewing bearings are large bearings specially designed to accommodate oscillating motion.They consist of an inner ring and an outer ring,one of which usually contains a gear.Bearings raceways,together with rolling elements(and cages or spacers),are designed to withstand loads individually or in combination and in any direction.