CATEngine Parts

166-6930-166-6931 — Tapered Roller Bearing 166 6930

This is a CAT Tapered Roller Bearing, specifically part numbers 166-6930 and 166-6931, designed to support axial and radial loads in rotating assemblies. Manufactured to precise OEM standards, it offers superior load-carrying capacity and smooth operation compared to a worn bearing with pitted races or a loose cage. Operators may notice increased noise, vibration, or a noticeable looseness in the component it supports when this bearing begins to fail.

Tapered Roller Bearing 166 6930 – Part No 166-6930-166-6931 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

="/assets/js/product-page.js">

Related CAT Parts

From the same category — may also be needed

1B8701
Woodruff Key
2766793
Oil Pressure Sensor Switch
275-7741
Wiper Switch Assembly
107-6954
Friction Plate
241-3150
Injector External Wiring Harness
212-3463
Fuel Injector

Browse all CAT Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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
MaterialCase Hardened Steel
ApplicationWheel Hubs, Gearboxes, Axles
Service LifeReplace based on inspection or failure symptoms
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of bearing failure include humming or grinding noises that increase with speed. If left unaddressed, the noise will intensify, accompanied by increased vibration and potential binding of the rotating component. Continued operation can lead to bearing seizure, causing shaft damage and potentially immobilizing the equipment.

Installation Tip

Ensure the bearing housing and shaft surfaces are meticulously clean before installation to prevent contamination. Never use a hammer to drive the bearing onto a shaft; use a proper press or driver tool.

Service Note

When replacing tapered roller bearings, always inspect the seals for damage and the shaft or housing for any signs of wear or scoring.