When replacing or servicing wheel bearings, keep these checkpoints in mind.
Make sure you have compatible replacement AVIATION bearings.
Incompatible bearings could compromise the wheel assembly and lead to unfortunate problems.
Check BOTH the inner and outer bearings.
For some wheels, the inner and outer bearing is not the same. Make sure you have them in the correct sides and double-check the compatibility.
Inspect cup bearings.
If you replace the cone bearing, make sure you replace the cup as well.
Lubricate the bearings.
Most bearing will be sold pre-lubricated, but it is best to thoroughly lubricate them with the appropriate grease prior to installation.
While the wheel is disassembled, inspect and clean the seals.
If the wheel has felt lined seals, over time the felt will leave debris inside the wheel chamber.
Consider an upgrade to molded rubber grease seals.
Molded rubber grease seals will diminish the amount of crud that gathers inside the wheel.
Inspect and clean the spacer.
If you see any damage, the spacer may be in need of replacement.
When re-assembling, ensure the snap ring is in place and secure.
If you see any damage, consider replacing the snap ring. Nothing could be worse than damage to a wheel assembly that could have been avoided at a small cost.
If you have questions about this or any aircraft wheel and brake repair always consult the Technician’s Service Guide or Component Maintenance Manual. Many answers to common questions can be found in our FAQ section.
