BEARING - TAPER ROLLER (Komatsu KO3EB-21-51940)

A damaged taper roller bearing can cause uneven rotation and premature wear in rotating assemblies. During inspection, a bearing with pitted rollers or spalled races indicates imminent failure. Keeping a taper roller bearing in sound condition helps maintain smooth shaft alignment and load distribution. The bearing type supports combined radial and axial loads through its tapered geometry. A common failure consequence is increased vibration and noise as the rollers degrade. This aftermarket replacement part references the Komatsu catalog number KO3EB-21-51940. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO3EB-21-51940, ko3eb-21-51940, KO3EB2151940, ko3eb2151940