CATBearing & Bushing

8e0400 Bearing — Cat D8R D8N

This bearing is a vital component within the machine's powertrain or undercarriage, engineered to support heavy loads and facilitate smooth, low-friction movement between rotating parts. Manufactured to meet strict OEM material and dimensional tolerances, it provides superior wear resistance compared to a compromised bearing exhibiting surface damage or excessive heat. Operators may observe increased noise, vibration, or a noticeable decrease in the smoothness of operation when this bearing begins to fail.

Bearing – Part No 8e0400 – 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 TypeRoller Bearing
MaterialHardened Steel Alloy
ApplicationPowertrain/Undercarriage
Service LifeReplace based on inspection or 4,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing 8E0400 bearing might be a distinct humming or rumbling noise that increases with speed or load. If ignored, the bearing can degrade further, leading to increased friction, heat buildup, and potential seizure of the rotating component. Continued operation risks severe damage to the shaft, housing, and surrounding drivetrain elements.

Installation Tip

Ensure the bearing seat and shaft are perfectly clean and free from any contaminants before installing the new bearing. Never apply heat directly to the bearing's inner race unless specified by the manufacturer; use appropriate pressing tools.

Service Note

Inspect the seals and the shaft for wear or scoring when replacing this bearing.