CATBearing & Bushing

3K0139 Bearing — Cat 966C 977

This bearing is engineered to support rotational or linear loads within machinery, reducing friction and enabling smooth movement of components. Constructed from hardened steel, it is designed for durability and consistent performance under demanding operational conditions. A failing bearing will typically present as increased noise, vibration, and potentially overheating of the affected area.

Bearing – Part No 3K0139 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeBearing
MaterialHardened steel
ApplicationGeneral rotational support
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a worn bearing include audible humming or grinding noises during operation, and increased heat in the surrounding area. If not addressed, the bearing can seize, causing significant resistance to movement and potential damage to shafts or housings. This can lead to unexpected equipment stoppage.

Installation Tip

Ensure the mounting surface is perfectly clean and free of burrs before attempting to install the bearing. Press the bearing in using a proper bearing installer tool to apply even force to the correct race.

Service Note

When replacing a bearing, inspect the shaft or bore for any signs of wear or damage that could compromise the new bearing's seating or performance.