CATBearing & Bushing

2487857 Bearing — Cat 311C 311D Lrr

This is a high-performance bearing engineered to ensure smooth rotational or linear movement and support significant operational loads in excavators. It is manufactured to meet Caterpillar's stringent material and dimensional standards, offering superior longevity and reliability over a worn component. Operators may detect increased noise, vibration, or a reduction in the precision of the affected system when this bearing begins to fail.

Bearing – Part No 2487857 – 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
MaterialSteel alloy
ApplicationExcavator component support
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing bearing may initially present as a subtle grinding noise or increased vibration during operation. As wear progresses, the noise will become more pronounced, and excessive play can lead to imprecise movement or misalignment of the connected components. Continued operation risks damage to surrounding parts and potential operational interruptions.

Installation Tip

Ensure the bearing bore or shaft is meticulously cleaned and free of any old lubricant or debris before attempting installation. Avoid applying uneven pressure to the bearing races during seating.

Service Note

Inspect the surrounding seals and check the lubricant for any signs of contamination or leakage when replacing this bearing.