View single post by Mark Rosenbaum
 Posted: 12-16-2005 03:52 pm
PM Quote Reply Full Topic
Mark Rosenbaum



Joined: 03-12-2005
Location: Kingman, Arizona USA
Posts: 532
Status: 
Offline
 Good question.  I'd suppose that it's present to provide a small sealed volume to capture whatever gets past the o-ring and bearing, so that the brakes are not contaminated.  If that's not the answer, then perhaps it's a carry-over of what Vauxhall did in the old days before o-rings, or perhaps is intended to keep brake dust and other debris away from the bearing.