RE: [CR]Prior hubs with riveted large flanges

(Example: Framebuilding:Tubing)

From: "Mark Bulgier" <mark@bulgier.net>
To: "'RaleighPro531@aol.com'" <RaleighPro531@aol.com>, classicrendezvous@bikelist.org
Subject: RE: [CR]Prior hubs with riveted large flanges
Date: Sun, 24 Feb 2002 10:17:54 -0800


David Bilenkey wrote:
> Look at
> http://bulgier.net/pics/bike/Parts/Prior_Hubs/Prior_hub_center_logo3.jpg
> and I think you'll notice the 9 vs. 18 thing is just an
> inside/outside illusion.
> Looks as though some go through and some are blind....

and Pete Geurds replied:
>
> Look at the rear hub and you see that all the rivets show on
> the outside of the left flange and all rivets show on the inside
> of the right flange. I don't see why the rivets in front wouldn't
> all show from both sides as in the rear. (In which case I wouldn't
> understand what holds them in.) Speaking of inside/outside it seems
> the rivets were alternated, the heads show that every other one was
> installed from outside.

This is correct. All the rear rivets go through and are peened on both sides. In the front, only half the rivets go through and are peened on the both sides; the other half are peened on the inside only and don't appear on the outside. I'm thinking those rivets may be decorative only - there to fill the holes in the hub body, but don't add any strength to the connection to the flange. This may be because the rear needs more rivets, due to the torque that only rear hubs get.
> I believe the center shot you referred to is of the rear hub.

No, all the center shots are of the front hub. On the rear hub, you don't see the rivet heads alternating like that - they all look the same.

Mark Bulgier
Seattle, Wa
USA