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Rebuilding Campagnolo Rear Hub (Non-OS)
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race...@yahoo.com
May 27, 2012, 4:44:55 PM5/27/12
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I have been looking into reconditioning a Campagnolo rear hub, the classic silver "narrow" hourglass type with the non-oversized axle. Throughout its earlier life, the drive side lock nut's setscrew was forced, sadly, and a proper repair needs a replacement axle shaft, lock nut, and setscrew. I have not had much luck in locating these earlier parts.
The cups and cones have been carefully polished and are serviceable, but the freehub has a damaged (outer) sealed bearing; there is radial play at the outside end. I have seen replacement units (with the modern larger ID bearing) photographed with a cylindrical spacer. Is this meant to be inserted in the larger bearing to accommodate the narrow axle?
Concerning the axle shaft, I see that there are two different freehub side lengths available. The hub is a Veloce model.
Bobby
The cups and cones have been carefully polished and are serviceable, but the freehub has a damaged (outer) sealed bearing; there is radial play at the outside end. I have seen replacement units (with the modern larger ID bearing) photographed with a cylindrical spacer. Is this meant to be inserted in the larger bearing to accommodate the narrow axle?
Concerning the axle shaft, I see that there are two different freehub side lengths available. The hub is a Veloce model.
Bobby
AMuzi
May 27, 2012, 5:27:08 PM5/27/12
to
Eight speed axle may be best sourced by buying a used 8
speed hub. They are cheap now.
The spacer goes between the two bearings in your cassette
body. The 8 speed body is relatively tough, just replace
bearings & spacer as you found them. Getting the bottom
bearing out is the only tedious part of the job.
(Our library does not show an optional axle for Veloce 8,
only 1281099 = FH-AT-101 for all years, 130mm spacing)
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971
race...@yahoo.com
May 28, 2012, 1:12:03 AM5/28/12
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It's paired with a Record 9 speed gruppo, sorry I didn't specify that! I see that the earlier 8 speed hub has a different groove design. The hubs are the only part of the bicycle that are not Record 9. I have a Daytona front hub and Veloce rear, with the rear hub being the earlier type.
Looking at the 1997 parts details it looks like the FH-AT101 is the correct axle. I read that the FH-RE101 is 10mm longer between the center boss and axle end. The nut is just loose enough to turn, bit I'll have to tackle getting that setscrew extracted. I see that the inner hex is damaged.
I ride on these daily, both commuting to work, and weekend riding, rain or shine, so it's important to have the proper components on hand. They're beautiful hubs, fitted with tied spokes at the rear (soldered). Pity the rear got a little ham-fisted work years ago at some point (one ball was missing in the left bearing).
Times are rough, feeding three girls. I might pick up a backup set of Khamsin wheels as Campy compatibility takes a little planning, and they're not too expensive. You can't just pop into the local shops and see Campagnolo on the shelf (I ran Shimano for over 27 years until discovering just how nice Ergo shifters can be!). The newer Campy wheels will be good as a backup in case of a fall or damage.
The earlier Campagnolo hubs are solid, and the silver aesthetic makes the old man happy- I grew up with brazed lugs and leather saddles. The newer gear is fast and light, but painfully "disposable".
Looking at the 1997 parts details it looks like the FH-AT101 is the correct axle. I read that the FH-RE101 is 10mm longer between the center boss and axle end. The nut is just loose enough to turn, bit I'll have to tackle getting that setscrew extracted. I see that the inner hex is damaged.
I ride on these daily, both commuting to work, and weekend riding, rain or shine, so it's important to have the proper components on hand. They're beautiful hubs, fitted with tied spokes at the rear (soldered). Pity the rear got a little ham-fisted work years ago at some point (one ball was missing in the left bearing).
Times are rough, feeding three girls. I might pick up a backup set of Khamsin wheels as Campy compatibility takes a little planning, and they're not too expensive. You can't just pop into the local shops and see Campagnolo on the shelf (I ran Shimano for over 27 years until discovering just how nice Ergo shifters can be!). The newer Campy wheels will be good as a backup in case of a fall or damage.
The earlier Campagnolo hubs are solid, and the silver aesthetic makes the old man happy- I grew up with brazed lugs and leather saddles. The newer gear is fast and light, but painfully "disposable".
race...@yahoo.com
May 30, 2012, 11:34:39 PM5/30/12
to
Update time. I drilled out the setscrew with a small cobalt bit, and with the stress relieved, a spiral extractor did the trick. I guessed right, the nut had been forced in the past, as there's a track pressed across about 350 degrees about the thread circumference.
Luckily, the remainder of the axle threads are in good shape. The setscrew is there to keep the nut in place when the wheel is removed from the dropouts only.
The bearings are little guys, looks like the shaft OD is 11.90mm, the bearings are separated by a spacer, 5mm wide each, with an overall diameter about 24mm. Unfortunately, I haven't found a source as yet (the later bearings, larger ones for the larger hollow axles, are available in kits).
Luckily, the remainder of the axle threads are in good shape. The setscrew is there to keep the nut in place when the wheel is removed from the dropouts only.
The bearings are little guys, looks like the shaft OD is 11.90mm, the bearings are separated by a spacer, 5mm wide each, with an overall diameter about 24mm. Unfortunately, I haven't found a source as yet (the later bearings, larger ones for the larger hollow axles, are available in kits).
AMuzi
May 31, 2012, 4:59:57 PM5/31/12
to
If you are in a remote are with no bearing supplier, see a
rebuilder of auto electric starters, alternators etc they
will usually stock bearings like it.
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