Link-Belt PLB6939-R Pillow Block Spherical Roller Bearing

The Link-Belt PLB6939-R pillow block spherical roller bearing is a heavy-duty, base-mounted unit designed to support rotating shafts under high radial and moderate thrust loads, with up to 4° of misalignment tolerance. It houses a self-aligning spherical roller bearing inside a rugged pillow-block cast housing (available in cast iron or ductile iron) and is grease-lubricated, relubricatable, with an adapter mount / positive locking system to secure installation. The 2-7/16 in (61.9 mm) shaft bore and base-mount configuration support reliable alignment in demanding equipment such as conveyors, crushers, fans, pumps, mixers, and material handling lines, while delivering high load capacity and low vibration operation. This bearing is widely used in mining, aggregate processing, pulp and paper, steel mills, and general manufacturing environments where heavy radial loads, occasional shock loads, and shaft misalignment must be accommodated without sacrificing life or performance. Part number PLB6939-R (alternate P-LB6939R); manufacturer Link-Belt Bearings / Regal Rexnord; status Active / industrial replacement component.