The 50 mm steel shaft sleeve bearing is engineered for compatibility with 6010, 6210, and 6310 series bearings, offering a precise 50 mm inner diameter for secure shaft mounting. The sleeve is available in multiple undersize options, including 2 mm (5010-2, 48 mm bore), 3 mm (5010-3, 47 mm bore), and 4 mm (5010-4, 46 mm bore), providing flexibility for various shaft tolerances. Constructed from durable steel, this sleeve ensures reliable performance in demanding mechanical applications, delivering robust support and alignment for rotating components. Its standard 50 mm length and precise machining make it an essential accessory for maintaining bearing integrity and extending equipment lifespan in industrial and electrical systems.