Industrial BTM204-12 Three Bolt Flange Bearing

AMI Bearings' Industrial BTM204-12 Three-Bolt Flange Bearing is a 3/4-inch bore, set-screw locking flange unit in the BTM200 series, built with a malleable iron three-bolt flange housing (TM204) and a single-row ball bearing (B4-12). It uses a 5/16-inch mounting bolt pattern and includes a lubrication fitting tapped 1/4-28 UNF for relubrication, designed for standard-duty applications. The shaft diameter is 3/4 in, with a bore of 0.750 in, and the overall flange dimensions include a = 3-9/16 in, e = 2-13/16 in, g = 7/16 in, x = 25/32 in, s = 11/32 in, b = 2-1/4 in, Z = 1.126 in, Bi = 0.972 in; the unit weighs about 0.60 lb. This three-bolt flange bearing provides secure shaft retention with a set-screw lock in a compact, easy-to-service package suitable for general machinery mounting and equipment that requires reliable radial support.