cheap slewing bearing

Kaydon Bearings: slewing ring/turntable bearings and pinions. Four point contact, eight point contact, cross roller, three row roller

Slewing bearings comprise an inner ring and an outer ring, one of which usually incorporates a gear. Together with attachment holes in both rings, they enable 

Slewing Bearings. Rotek is the North American manufacturing leader of slewing bearings. Rotek slewing bearings are machine elements which absorb all axial and radial forces and the resulting tilting moments in a single self-retaining and ready-to-install unit

A slewing bearing or slew[ing] ring is a 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, or the wind-facing platform of a horizontal-axis windmill

Slewing Ring Bearings - Components (Turntable Bearings). Inner Ring and Outer Ring; Rolling Elements; Spacers, Spacer Balls & Separators. Mounting Holes