BEARING RACE INNER (Mitsubishi MB1009111)

A worn bearing race inner can cause uneven rotation and premature failure of the bearing assembly. This aftermarket replacement part references Mitsubishi catalog number MB1009111. The bearing race inner provides a smooth, hardened surface for rolling elements to travel against. When the race surface becomes pitted or spalled, the bearing may generate noise and vibration during operation. In a typical application, the race inner is pressed into a housing and supports a rotating shaft. Verify the serial number or application, then call (562) 693-7748. The part is a steel ring with a precisely ground inner diameter.

Part number variants: MB1009111, mb1009111