The MRC Medium series ball bearing is an open single-row bearing for supporting radial loads. This single-row bearing has a medium bearing structure for average to above-average radial loads and light-to-average axial loads. It has an open configuration for lubrication in place and for use in applications with little exposure to dirt, grime, debris, and other contaminants. This MRC Light series ball bearing is for use in applications that involve combined radial and axial loads and a need for high running accuracy and stiffness at high rotational speeds. Such applications include clutches, drives, gearboxes, compressors, pumps, turbines, and printing and textile machines, among others.

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

MRC Bearing Services, a division of The SKF Group, manufactures a variety of ball bearings for automotive, food and beverage, energy, aerospace, and other industrial and commercial applications. Their headquarters are in Jamestown, NY.