alex yates said:To quote:
bazhart said:The difficulty here is that some bearings were fitted a bit tighter than others (usual manufacturers tolerance build up) and these generated more minute running in metallic particles that mixed with grease and formed grinding paste that prematurely damaged some bearings.
This is why they either seem to fail early (under 45K) or last well over 100K.
Baz
Fitting a NOS sticks you right in the middle of this ball(bearing) park.
No doubt this will not happen with the seals removed, im not sure if it is nos now or just new as it has no seals but it is the correct size.