ABC Smith Bearing CR-1-1 4-XB Bearing

SMITH Bearing CR-1-1/4-XB is a stud-type cam follower designed for positive, low-friction motion in automated machinery. It uses a 1.25 in diameter roller with a 0.75 in roller width, mounted on a 0.5 in diameter stud that measures 1.25 in long; the stud is threaded 1/2-20 UNC with a minimum engagement of 5/8 in. The bore size recommended for the shaft is 0.5000 in, with a bore tolerance of +0.0005/-0.0000, and the system specifies a recommended torque of 500 in-lbs. Lubrication details include a 3/16 in lube fitting, a 3/32 in oil hole diameter, and an oil hole located 5/16 in from the end; the minimum boss diameter is 3/4 in. Rated for moderate loads, it provides a basic dynamic rating of 4,470 lbs and a maximum static capacity of 4,300 lbs, making it suitable for cam-driven cycles with steady, medium-speed loads. This model is part of Smith Bearing’s XB-series cam followers and is listed in Smith Bearing catalogs and distributor listings as CR-1-1/4-XB, a standard, non-stainless option in the series.