Universal Industrial Products Inc. manufactures large diameter slewing bearings available as single row, double row, three row, and cross roller types. The single row bearings are available with outer diameters from 18" to 236", while the three row, double row, and cross roller bearings feature outer diameters from 18" to 196". Depending on type the bearing feature maximum thrust of 26,700 KN to 105,060 KN. The single row bearings are used in boom truck, mobile crane, crawler crane, wind power machine, tunnel boring machine, ladle turrent machine, handling machine, and mobile platform applications.

Rotek Inc. manufactures light duty slewing bearings for medium duty applications including turntables, small crane, industrial production equipment, and utility derricks. The bearing feature raceway diameters from 13" to 57", with thrust capacities of 10,000 to 336,000 pounds and moment capacity of 25,000 to 368,000 ft-lbs. The company's series 1000 slewing bearing feature raceway diameters of 12" to 42" and have thrust of 610 to 35,000 pounds.

Kaydon Corp.'s bearing division custom manufactures bearings with outer diameters up to 240". The company also produces slewing ring bearings available with outer diameter up to 218" and tapered roller bearings that feature large bore diameters. The slewing ring bearings are suited for cranes, aerial lifts, excavators, wind turbines, utility derricks, log loaders and fellers; while the roller bearings are used in oil equipment and machine tool table applications.

Kingsbury Inc. distributes Messinger-brand three row roller bearings and crossed roller bearings that feature outer diameters of more than 8 feet. The bearings are designed to handle combinations of radial, axial, and overturning moment loads in a single envelope.

Silverthin Bearing Group manufactures precision thin section bearings with outer diameters up to 37" and inside diameters up to 35". The bearings are available as angular, radial, or four point contact types.

Impact Bearing distributes thrust bearings with outer diameters up to 63.75". The bearings are available as thrust spherical roller, angular contact thrust ball, thrust ball types.

Southern Sales & Engineering Co. Inc. distributes large diameter slewing ring bearings manufactured by Rotek. The bearings are available with diameters of 12" to 50 feet and single row and multi-row designs.

Maintenance-Reliability Solutions Inc. distributes SilverThin-brand and Messinger-brand large diameter bearings. The SilverThin bearing are precision thin section types designed for the aerospace, industrial, robotics, and distributor markets.