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Can I replace bearing race on a 1975 Normandy hub?

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Can I replace bearing race on a 1975 Normandy hub?

Old 06-03-17, 04:10 PM
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striegel
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Can I replace bearing race on a 1975 Normandy hub?

Today I pulled the rear wheel to handle some bearing noise and found that the drive-side bearing race had broken into pieces. They're supposed to be replaceable, aren't they? Does anybody still have the parts for this repair or do I have to get a new wheel?

The bike is my Paris Sport Model 700 that I bought new back in high school. All the bearings were original, so I guess maybe some wear is expected.

The wheels have high-flange, aluminum alloy Normandy hubs. Other than that, I don't know the model, but shouldn't they be pretty much standardized?

Alan
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Old 06-03-17, 04:14 PM
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Yeah if memory serves me, they were replaceable. I'd look around for some donor hubs maybe in your local co-op. Those were pretty common hubs once. Even if not replaceable, you can just build new wheels around the hubs.
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Old 06-03-17, 04:26 PM
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Normandy hubs were standard equipment on most low-end to middle-quality European bikes in those days, along with Schwinns.

The cup in a Normandy was not made to be replaced, but they are pressed in. Since yours is broken, removal should not be a problem. And if you can find a donor hub, you can remove the cups by drilling holes in the hub shell and knocking the cups out with a punch.

Someone out there may have better sources than me, but I have failed to find replacement cones for Normandy hubs, and they did not last well at all. Cups last much longer. I would suggest that you consider replacing the hub or maybe the entire wheel.

BTW, cups in more expensive hubs were made to be replaced, and there was space cast into the hub to allow a punch to knock the cone out. But it would be a challenge to find one for a 1975 hub.
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Old 06-03-17, 07:24 PM
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-----

The Normandy Sport bearing cup is easily removable from the back side with a punch. There are specific tools for the job which resemble a miniature head cup remover. Procedure can also be accomplished with an offset drift punch. No need to drill holes. [One Maillard hub which is difficult is the model 700 as its cup seat is rectangular in cross section with no open space behind the cup to get purchase with a punch. The shell's ID is smaller than the opening in the cup.] Replacement/donor cup for the Sport model can be simply pressed in with a bolt and nut.

Cracked cups more commonly occur on the right side. If the cone and locknut are not sufficiently tight against each other the rotation of the hub can cause the cone to tighten down on the bearings. Whereas on the left side the rotation tends to loosen the cone adjustment.

-----

Last edited by juvela; 06-03-17 at 08:06 PM. Reason: addition
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Old 06-03-17, 07:28 PM
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I've got several orphan hubs in a box in the shop. Not sure if I have a rear or not, and not sure if the races are removable

I'll try to dig tonight. If I can just send you a hub, I'm happy to help.
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Old 06-03-17, 08:20 PM
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Ok, so here's what I got: two fronts w/o visible date code, and a rear that's one of the "Schwinn Approved Deluxe" models that (IIRC) is a Normandy datecode Feb 71. Fronts are hollow-axle, rear is solid axle if that's a critical factor (I honestly don't know, assume the hub body is the same?...)

If you know either will work, drop me a PM.

Meanwhile, this may be of interest: http://www.bikeforums.net/classic-vi...l#post18310458
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Old 06-03-17, 08:27 PM
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I guess I don't know - cups same for solid as hollow axle?

Maybe I'll have to take some measurements and take a couple of close-up photos.

Alan
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Old 06-03-17, 08:39 PM
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Originally Posted by striegel View Post
Maybe I'll have to take some measurements and take a couple of close-up photos.

Alan
Yes, same, also interchange with Atom.
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Old 06-03-17, 08:39 PM
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Originally Posted by striegel View Post
I guess I don't know - cups same for solid as hollow axle?
According to the Schwinn dealer parts catalogs the hollow and solid axle French (Normandy) hubs used the same bodies.
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Old 06-03-17, 09:05 PM
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Well, I've got an '80 or '81 solid axle Atom hubset in a bin as well.

So... OP, let me know. I don't mind shipping you this rear Schwinn variant if it'll work. If you won't need the guts, I'll remove it and just send the body. I'm ok with covering the ride, should only be a couple bucks. That would let me check to see if the cups are press fit...
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Old 06-03-17, 09:14 PM
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In principle, it should be possible to replace the cup. If I found a donor hub, I'd be tempted to just rebuild the wheel around that hub instead.
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Old 06-03-17, 11:31 PM
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Originally Posted by Sluggo View Post
Someone out there may have better sources than me, but I have failed to find replacement cones for Normandy hubs, and they did not last well at all.
Ditto -- about to give up on my hunt.
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Old 06-04-17, 07:32 AM
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Measured, photos will follow later

Originally Posted by striegel View Post
Maybe I'll have to take some measurements and take a couple of close-up photos.

Alan
Looking closely this morning, the same cup appears to be used on both drive-side and opposite. The opening for the dustcap somewhere between 29.52 and 29.77 mm (close enough?).
@francophile: Thanks for the link to that Servicing Normandy thread and thanks very much for offering your spare. I wouldn't need the axle but I would take the hub.

Sorry I can't post my photos right now, as I'm about to travel.

Alan
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Old 06-04-17, 07:47 AM
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Originally Posted by juvela View Post
-----

The Normandy Sport bearing cup is easily removable from the back side with a punch. There are specific tools for the job which resemble a miniature head cup remover...
A cartridge bearing puller works well too. Once you engage the underside of the race with the flange of the puller, you can drive it out from the other side, employing a used axle as a drift. Cartridge bearing pullers are available at most automotive and industrial supply stores. Small sizes, appropriate for bicycle use, typically cost under $5.00 US.
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Old 06-04-17, 01:43 PM
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Originally Posted by striegel View Post
@francophile: Thanks for the link to that Servicing Normandy thread and thanks very much for offering your spare. I wouldn't need the axle but I would take the hub.

Sorry I can't post my photos right now, as I'm about to travel.
Hey Alan, should I wait to ship until you return? I had an unfortunate accident with a chopsaw this morning, my thumb is mangled, so I'm a little behind on my day after the ER visit. I'll spare everyone pics.

I still have a working finger so I can still wrench, going to see a hand specialist tomorrow to see what we need to do. I don't think I can tear the hub down today.
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Old 06-04-17, 04:46 PM
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Now I'll have to get one of those!

Aha! I've never seen one of those, but it looks like a great idea. Something to put on my wish list for Father's Day.

Alan

Originally Posted by T-Mar View Post
A cartridge bearing puller works well too. Once you engage the underside of the race with the flange of the puller, you can drive it out from the other side, employing a used axle as a drift. Cartridge bearing pullers are available at most automotive and industrial supply stores. Small sizes, appropriate for bicycle use, typically cost under $5.00 US.
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Old 06-04-17, 05:40 PM
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Photos

So here are images of the intact and broken bearing cups. What you don't see are the missing pieces already removed from the drive side on the right.



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Old 06-04-17, 08:25 PM
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@striegel, good news and great news: Looks like the dust cap was the same size so I cracked it open to make sure cones and cups looked good. We're golden, they look awesome, axle looks straight, this is an excellent parts hub.

First thread on freewheel side needs cleanup at the end and the spacer nut is rusty, it's the only bad thing I see. I'll get this out during the week, hope it helps!

Some pics here of the guts. And yeah everyone, my finger is trashed, if you're curious and don't mind gore, here's a mangled thumb (I'm elated I still have one, but I'll be hanging up the wrenches for a few weeks).
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Old 08-13-17, 06:48 PM
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Finally did the hub transplant and rode it the first time today

Well, this took me a while to get around to. I was traveling quite a bit and didn't get to things right away.

When I finally settled down to try swapping the bearing cups, I determined that I had no good way to safely remove a cup - even the damaged one from the original hub.

The hub swap was arranged with the LBS - Solon Bicycle Shop. They had it ready a day earlier than promised and I picked it up last Thursday but didn't get on the bike to ride until this morning.

Everything is great again with new spokes and the donor hub.

Thanks for the advice and help.
http://striegels.com/alan/photo/Bike/New-hub.JPG
http://striegels.com/alan/photo/Bike...age%20door.JPG
Alan
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Old 08-13-17, 07:06 PM
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Originally Posted by striegel View Post
Everything is great again with new spokes and the donor hub.

Thanks for the advice and help.
Thanks for the update, always love to see a happy ending!
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