Regal Beloit MFC-28 Bearing

Sealmaster MFC-28 four-bolt piloted flange mounted bearing unit from Regal Rexnord's Sealmaster Gold Line family—a compact, relubricatable ball bearing insert designed for quick, precise mounting on a 1.75 in shaft. The housing is a cast-iron flange with a 6.125 in outside diameter, delivering an overall length of 6.125 in and a bolt center-to-center distance of 5.125 in; bolt holes are 0.4375 in, and the centerline to front face measures 1.281 in with a 4.25 in pilot diameter for alignment. The replaceable insert uses 52100 bearing steel with a black oxide finish and employs a land-riding retainer for improved lubrication retention. It supports up to 3,550 rpm and provides a dynamic radial load rating of 7,889 lb and a static radial load rating of 5,216 lb. Lubrication is lithium complex NLGI 2 grease, and the unit is relubricatable for maintenance; the seal is a felt labyrinth type, and an insert is replaceable. Weighing 6.41 lb, this mounted bearing is suited for compact, heavy-duty rotating equipment where reliable support, serviceability, and straightforward installation are essential.