Hubs, Bearings & Seals

Hub removal, inspection, lubrication, adjustment and failure analysis.

Lessons

1. 01Hub RemovalSix-step procedure to safely pull a hub for inspection.
2. 02Drum & Bearing InspectionWhen to machine or replace drums, and how to inspect bearings.
3. 03Bearing Lubrication: Grease vs OilRepack intervals and the grease spec.
4. 04Bearing Adjustment / Castle NutSet end play with the 50 ft-lb seat and back-off method.
5. 05Bearing Failure AnalysisRead a failed bearing to find the root cause before installing a new one.
6. 06Seals & Seal InstallationGrease seals, oil-bath seals and how to install them without damage.
7. 07Identify Components and Remove the Hub SafelyPrepare a stable, clean work area and remove a conventional hub while protecting its bearings and retaining hardware.
8. 08Inspect Bearings and Pack Them with GreaseClean and inspect matched bearing components, recognize replacement conditions and hand-pack serviceable bearings with suitable grease.
9. 09Inspect and Install Hub SealsInspect seal-contact surfaces and install the specified replacement seal without damaging its casing, lips or inner bearing.
10. 10Adjust Conventional Bearings and Reassemble the Wheel EndFollow the applicable conventional hub adjustment sequence, secure the nut and cap, and reinstall the wheel using specified staged torque.