Industrial AR-2-12 Insert Bearing

Sealmaster AR-2-12 insert bearing is a straight-bore, mounted ball bearing designed for quick, reliable installation into a housing or expansion ring to deliver smooth rotary motion in tight spaces. This AR-2-12 variant uses a 1-1/8 in bore, an outside diameter of 2-7/16 in, and an outer race width of 7/8 in, making it a compact, medium-duty insert for retrofit into standard AR housings. Constructed from 52100 bearing steel with a black oxide finish, it is designed for durability in everyday industrial environments. The bearing is equipped with a felt labyrinth seal to help exclude dust and debris, and a set-screw locking feature that secures the shaft without a separate collar. Typical applications include conveyors, agricultural equipment, and general machinery where a replaceable insert bearing reduces maintenance downtime and simplifies shaft alignment. As part of Sealmaster’s AR insert family, the AR-2-12 is engineered for medium-duty service and straightforward installation, delivering dependable performance in light- to moderate-load drives and returning to service quickly when maintenance is needed.