Slewing ring bearings, also called plain bearing turntables, are mounted on surfaces rather than shafts. They enable rotational motion parallel to the support surface. Installation is facilitated by mounting holes located along the inner and outer races. Slewing ring bearings are large in size and support high radial, axial, and moment loads at low speeds. The rolling elements are typically balls or rollers. Slewing ring bearings are utilized in cranes, turbines, and engines.

• Ball
• Roller