Why are my wheel bearings failing ? again
replaced under 1 year ago and 30000kms ago
I would say that a premature bearing failure would be caused by a defective (cheap?) bearing, or improper installation. The axle nut is what clamps the bearing and sets the bearing preload. If the nut is under-torqued, the best bearings in the world will fail very quickly. The 2002 bearing is a Gen1 style cartridge bearing. It has to be pressed into the knuckle, and then the hub gets pressed into the bearing. It the bearing isn't properly support during the press operation, and is pressed across the balls, the balls or races will get damaged... bearing is done for.
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