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There is rust all over my spindle, and the hub is difficult to remove. What can I do about it?
Detailed instructions and tips for removal can be found in the ConMet Service Manual for Steer, Drive, and Trailer Hub Assemblies and also the Service Bulletin entitled “Removing Frozen Hubs from the Spindle.”
Aside from outside contamination, this is normal fretting corrosion and is related to the small movements of the bearing against the spindle in service. The effect of fretting can be greatly reduced by applying a coating of grade 2 grease to the spindle bearing journals before installing the hub. In severe cases, the bearing cones will adhere to the spindle and require a special tool to remove the hub.
The spindle can be reconditioned with emery cloth or a fine sand paper to remove the excess rust before installing the hub. Consult your tractor or trailer OEM, or the axle manufacturer in cases of severe spindle damage.
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