CATBearing & Bushing

1K7737 4L7249 — Cat 446 446b

This is a high-performance CAT bearing, part number 1K7737, designed to provide reliable support and reduce friction in demanding applications. Manufactured to meet rigorous OEM specifications, it offers superior wear resistance and operational longevity compared to a compromised bearing. Operators may observe increased noise, vibration, or a loss of smooth mechanical function as this bearing begins to wear out.

4L7249 – Part No 1K7737 – 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
MaterialHardened Steel Alloy
ApplicationWheel hub or final drive assembly
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing bearing may initially manifest as a subtle humming or clicking sound that becomes more noticeable under load. If ignored, these sounds will escalate, accompanied by increased vibration and potential looseness in the wheel or drive assembly. Continued operation risks significant damage to the hub, spindle, or final drive components.

Installation Tip

Ensure the bearing races are properly seated and that the correct pre-load is applied during installation. Avoid reusing old seals, as they may not provide adequate protection for the new bearing.

Service Note

Inspect the hub, spindle, and associated seals for wear or damage when replacing this bearing.