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What are these things seen on old Suntour/Campagnolo Hubs etc

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Brandy Truffle:

See these on a few old very early 80's hubs like those mentioned..they clip onto centre of hub shaft....

Does anyone know why? What is their purpose?

snav69:
The hubs used to have oil holes so you could keep the shaft nice and lubed  :daumenhoch: and that was the cover  ;)

Paul  :coolsmiley:

BrianP:
Another use...

It's also like the resistance spring out of a suntour coaster brake, or nankai freecoaster (among others).

In a coaster hub, it helps provide "lag" so that when you crank the pedals forward, it kinda makes the clutch ride up the helical bit of the driver and bite against the inside of the hub shell and get the friction needed to drive you forward, and it's spring loaded so that it sorta floats when the axle is turning. At least I think that's its purpose  ;D

According to www.free-coaster.com, it provides: "Resistance (There must be some kind of resistance, usually a spring, against the axle so that the hub can “tell” the difference between pedaling forward and rolling backward). "

Brian  :daumenhoch:

Brandy Truffle:
Thanks guys... I'd tend to go with Pauls explanation as they definately clip on the outside middle of the hub body, like where a decal would go.....

Ive had a Suntour coaster brake in bits before now, so i see where that thought is too...it is very similar to that clip....

Maybe Mattdub knows, he resto'd some old hubs last year, I'll wait and see his thoughts too..

Cheers Guys.  :daumenhoch:

snav69:
I've just done a search for hub oil hole onb ahoo and found this  :daumenhoch:

http://uk.images.search.yahoo.com/images/view?back=http%3A%2F%2Fuk.images.search.yahoo.com%2Fsearch%2Fimages%3Fei%3DUTF-8%26p%3Dhub%2520oil%2520hole%26rd%3Dr1%26fr2%3Dtab-web%26fr%3Dyfp-t-501&w=529&h=300&imgurl=images.andale.com%2Ff2%2F115%2F106%2F3561856%2F1045705080134_bw_front_hub.jpg&rurl=http%3A%2F%2Fwww.bikeville.com%2Fhubs.html&size=12.6kB&name=1045705080134_bw_front_hub.jpg&p=hub+oil+hole&type=JPG&oid=fa5940bdd52bca76&no=1&tt=39&sigr=112occert&sigi=1235nsbfm&sigb=13areqiau

 :coolsmiley:

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