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500 Hub thingies question.

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McCabe-Thiele (Ted):
When I was cleaning my rear brake drum I notice three pairs of small rubber parts sticking through into the hub but nothing for the fourth pair at 3 o'clock in the photo below.

Is this anything to worry about - I'm assuming its something to do with the drive cushions in the rear sprocket side ?

.500 Hub rubber bits by Macabe Thiele, on Flickr

florence:
It looks like the locating lugs from the drive cushion have broken off which might suggest the cushions themselves are perished.  I would have a look to make sure.

Sesman:
Hi, Ted. Either the damper ‘nipples’ have sheared off or there is no damper cushion fitted.

Nothing to worry about, but I’d check the presence and condition of the rubbers. I replaced all mine on the 500 and 550 when I changed the bearings…the dampers were as hard as marble.

florence:
also, at about 8 through to 6 o'clock, does it look like there is a gap between the drum liner and the hub?

McCabe-Thiele (Ted):

--- Quote from: florence on September 13, 2022, 11:30:56 AM ---also, at about 8 through to 6 o'clock, does it look like there is a gap between the drum liner and the hub?

--- End quote ---

Trick of the photo / lighting.

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