CATBearing & Bushing

1280390 Bearing — Cat 140H 143H

This is a robust bearing designed to support heavy radial and axial loads in critical machine components like wheel hubs or articulation joints. Manufactured to meet rigorous standards, it ensures smooth rotation and stability, unlike a worn bearing that can cause looseness and noise. Operators may notice increased play in steering or suspension, audible grinding, or reduced maneuverability if this bearing is failing.

Bearing – Part No 1280390 – 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 TypeHeavy Duty Bearing
MaterialHardened Steel
ApplicationWheel hub, articulation joint support
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of failure may include a humming or grinding noise that changes with speed or load, and increased looseness in the wheel or articulation. If left unaddressed, the bearing can seize, causing severe damage to the hub or pivot, and potentially leading to loss of control. Continued operation risks significant component damage and safety hazards.

Installation Tip

Thoroughly clean the bearing bore and the shaft mating surfaces to remove all contaminants and old grease. Ensure the bearing is seated perfectly square using a proper press or driver to avoid damaging the races.

Service Note

Inspect the hub or pivot components for wear or damage, and check seals for integrity during bearing replacement.