CATBearing & Bushing

cUP03 Bearing — Cat 320C 320D

This is a high-quality bearing designed to reduce friction and support rotational movement within the specified Caterpillar machine's components. It is manufactured to meet stringent Caterpillar standards, ensuring superior durability and performance compared to worn or damaged bearings that exhibit increased play or noise. Operators may notice increased vibration, unusual noises from the affected area, or a decrease in operational efficiency when this bearing begins to fail.

Bearing – Part No cUP03 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeBall Bearing
MaterialHardened Steel
ApplicationVarious machine components
Service LifeReplace based on inspection or 2,000-3,000 hours
CompatibilityCaterpillar 320C, 320D, 323D, 325D, 329E, 330C, 330D
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of bearing failure may include a faint grinding noise or increased vibration. If left unaddressed, the noise will intensify, and excessive heat may develop, potentially leading to component seizure. Continued operation with a failing bearing risks damage to surrounding shafts and housings, necessitating more extensive repairs.

Installation Tip

Ensure the bearing housing is thoroughly cleaned of all old grease and debris before installing the new bearing. Avoid using excessive force or hammering on the bearing during installation, as this can damage the races and compromise its integrity.

Service Note

Inspect the shaft and housing for any signs of wear or damage that may have contributed to the bearing failure.