The last Timken wheel bearings I installed in 2001 had over 50,000 miles and still worked, but I wanted to make sure they were reliable , so I exchanged them for you. When it comes to brakes, tires, rotors and bearings, you want your life to be in safe hands. Timken quality stays the same, next time I change brakes I'll put in a new rotor and Timken wheel bearings.