CATBearing & Bushing

4K8734 Bearing — Cat 12M 12M 2

This is a high-performance bearing designed to ensure smooth rotation and support significant radial and axial loads in heavy-duty applications. Manufactured to meet stringent OEM quality standards, it provides exceptional durability and resistance to wear, outperforming components that have experienced degradation. Operators may notice increased noise, vibration, or a noticeable decrease in steering or drive performance when this bearing is compromised.

Bearing – Part No 4K8734 – 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 TypeTapered Roller Bearing
MaterialCase-hardened steel
ApplicationWheel spindle and differential support
Service LifeReplace based on inspection and operating conditions
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of failure include a distinct humming or grinding noise that intensifies with speed and load. As the bearing wears, increased play in the wheel or drive component will be noticeable, potentially leading to uneven tire wear or steering issues. Continued operation risks damage to the spindle or axle housing, requiring more extensive repairs.

Installation Tip

Thoroughly clean the bearing housing and shaft, ensuring no dirt or old lubricant residue remains. Avoid cocking the bearing during installation, as this can damage the rollers and races, leading to premature failure.

Service Note

Inspect associated seals, wheel bearings, and axle components for wear or damage during replacement.