AeroShell greases, when chosen correctly, can help to extend component life and reduce maintenance costs by preventing wear and corrosion.
Take wheel bearings for example. During a long flight, aircraft wheel bearings can become extremely cold. They are motionless until the instant the aircraft’s wheels touch the tarmac, when they rapidly accelerate to high speeds, become very hot and are often subjected to rain and runway de-icing fluids. The bearings may then sit in this hot, wet, corrosive environment overnight before a similar experience on the next flight.