MR bearing is needle roller bearings without inner ring (Inch series). While MR...+MI... and BRI series bearing is needle roller bearings with inner ring (Inch series).

This MR series needle roller bearing comprises a machined outer ring and machined needle rollers, and a cage to guide properly the needle rollers. In the case of this type bearing, the cage or the needle rollers are guided by the ribs of the outer ring or the face ring. Hence, this bearing MR series is non-separable type.

In addition, the type MR with no inner ring is also available for enabling a shaft to be used as the raceway surface. (Of course, the type with inner ring BRI is also available.) And we have available resource for both of the metric system and the inch system.

The MR series needle roller bearing is best-suited to space-saving design due to its low section height, then having the large load capacity. Also it owns high rigidity and high bearing accuracy due to its machined (precut) outer ring. Moreover, the type with seal fitted in at single side or double

sides is also available.

Application

The needle roller bearing is widely used in the printing machine, forklift, machine tool, two-wheeled car, press machine, automatic loom, food packaging machine etc.