Slewing bearings are typically used in applications where their ability to transmit relatively high loads is .... Cross-sections of available slewing bearings.

A slewing bearing or slew[ing] ring is a URB Slewing Ring Bearing rotational rolling-element bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder

Slewing rings are also known KOYO dac3055w Bearing worldwide as premium products in the field of rolling ... The bearing rings are supplied without gear teeth or, in order to ...... double direction. (axial and radial) ... the pot precisely above or below the row of rolling elements.