CATBearing & Bushing

7n2155 Bearing — Cat 3406 3408

This bearing is a vital component for reducing friction and supporting loads in heavy-duty engine and drivetrain applications, ensuring smooth rotational movement. It is manufactured to meet stringent OEM standards, offering superior durability and load-bearing capacity compared to a worn bearing that can lead to increased friction, heat, and potential component seizure. Operators may observe increased engine noise, oil pressure fluctuations, or a noticeable loss of power when this bearing begins to fail.

Bearing – Part No 7n2155 – 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 TypeEngine Bearing
MaterialSteel Alloy with Babbitt Lining
ApplicationEngine Crankshaft/Connecting Rod
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The most common initial symptom of a failing engine bearing is a distinct knocking or tapping sound originating from the engine, often increasing with engine speed. If ignored, this can progress to a steady knocking noise, accompanied by a significant drop in oil pressure and increased engine heat. Continued operation risks catastrophic bearing failure, leading to severe engine damage, including crankshaft scoring and potential engine seizure.

Installation Tip

Ensure that all crankshaft journals and bearing surfaces are meticulously cleaned and inspected for any signs of wear or damage before installation. Never reuse old bearing bolts; always use new, properly torqued fasteners to ensure correct clamping force.

Service Note

When replacing engine bearings, it is critical to inspect the crankshaft journals for straightness and surface finish, and to clean the oil passages thoroughly.