Final answer:
Inspecting wheel bearing seals involves checking for twisted axles, broken leaf springs, tears, and leakage.
Step-by-step explanation:
The question is about inspecting wheel bearing seals. Wheel bearing seals should be inspected for various issues, including twisted axles, broken leaf springs, tears, and leakage.
Unlike your tires, wheel bearing seals are not as visible whenever you make a quick inspection before going out for a drive, making it hard to check for visible signs of damage. However, oil leaks and grinding noises from the wheels are a few telltale signs that could point to a bad wheel seal.
“Bearings should be inspected for fretting, fluting, frosting, scoring or other damage.” Cutting and inspecting every bearing in motors that come in for repair, especially motors operated on variable frequency drives, will often provide vital information to make the best repair recommendation and improve performance.