BEARING - BALL OPEN (Komatsu KO42U-23-H0R12)

KO42U-23-H0R12: A worn ball bearing can cause irregular rotation and increased vibration in rotating assemblies. This aftermarket replacement part references the Komatsu catalog number KO42U-23-H0R12. The bearing type is a ball open design, which uses spherical rolling elements to reduce friction between moving surfaces. A common failure consequence is that degraded balls or races produce noise and heat, leading to premature component wear. During routine service, a bearing that feels rough or catches when spun indicates it needs replacement. This item ships at approximately 0.864 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO42U-23-H0R12, ko42u-23-h0r12, KO42U23H0R12, ko42u23h0r12