Transportation usually moves, which means it needs support from bearings and can’t live without it. For example, in a car, there are at least 30 parts with bearings, tensioner, air conditioner compressor, secondary air valve, fuel pump, starter motor, gearbox, steering pump, steering column, shock absorber, brake system, pedal assembly, seat adjustment system, door hinge, luggage hinges, hood hinges, wipers, etc.