CATBearing & Bushing

4b3673 Bearing - Needle — Cat

This is a needle bearing, a type of roller bearing designed to handle high radial loads in a compact space, typically found in transmissions, steering systems, or other high-stress areas. It is manufactured to precise dimensions and material specifications, ensuring smooth operation and extended component life, unlike a worn needle bearing which can cause binding or excessive play. Operators may experience rough shifting, increased vibration, or a loss of control when this bearing begins to fail.

Bearing - Needle – Part No 4b3673 – 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 TypeNeedle Bearing
MaterialHardened Steel
ApplicationTransmission, steering, or other high-stress areas
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of needle bearing failure include a noticeable increase in operating noise, particularly during load changes, or a slight stiffness in the affected component's movement. If not addressed, the bearing can disintegrate, leading to component seizure and potential damage to adjacent parts like shafts or gears. This can result in significant operational impairment and costly repairs.

Installation Tip

Ensure the bore and shaft surfaces are perfectly clean and free from any burrs or imperfections before attempting installation. Press the bearing in squarely using a suitable press or driver to prevent cocking and damaging the needle rollers.

Service Note

Inspect the shaft and housing for any signs of wear or damage, and ensure proper lubrication is applied before installation.