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repacking hubs. Did I do it right?(4 posts)

repacking hubs. Did I do it right?ScapinBike
Jul 14, 2001 2:14 PM
Let me say up front that I got into road riding only 8 months ago and have enjoyed reading this message board immensely. Its been very helpful. Thanks for all of your insights.

On to my question. For a first road bike, I picked up a used bike at a big Veloswap they hold in Denver. The bike was a Scapin with a Campy triple. I had never heard of Scapin before, but the bike fit well, had good components so I went for it. I've been very happy with it. As I got near 1000 miles I decied it was time for some maintenance and decided to attack the hubs. I had Zinn's book and concluded that the hubs needed to be overhauled. The axles didn't spin smoothly. I found some pitting on the front cones and replaced them and the ball bearings, some new grease. No problems, spins great. I open up the rear hub and first these little spring loaded pauls and the tiny springs fell out of the drive side. I scoured Zinn's book and finally did find a mention about these. They are tricky to get back in.
Then I noticed that the ball bearings were not all the same size.
There were 10 smaller ones and 9 larger ones, but I didn't notice which came from which side. I examined the cups and decided the bigger ones came from the drive side. I re-assembled the hub, but could not get the bearings to seat all the way onto the cone on the drive side. Guess I got it wrong. Swapped the bearings and things fit fine. I thought. A few days after this I noticed a significant amount of play in the rear wheel. If I hold the rim near the rear brake, I can easily move the rim 1/16 to an 1/8 inch closer to each brake shoe. I got out my cone wrenches and tightened up the rear cone nut. Unfortunately, if I tighten the cone nut to the point where there is no play in the rear wheel, the axle no longer spins smoothly. So I guess my question is, did I put the ball bearings on the wrong side or is there something else that I missed?

re: repacking hubs. Did I do it right?DINOSAUR
Jul 16, 2001 7:57 AM
Yes, Scapin is a good frame. Click on Bulltek Sports, they sell them. It's been a long time since I played around with hubs, but if I recall the bearings are alternated in the cone OoOoOoOoOo. If not, perhaps someone will correct me and solve your problem, if you haven't done so already. If you went to the trouble of repacking them, why not go the whole nine yards and replace the bearings?
re: repacking hubs. Did I do it right?pessot
Jul 16, 2001 9:52 AM
I did replace them on the front because I found some pitting in the cone. The rear was OK. if the bearings go in OoOoOo, I'm now more confused because I know I had 10 o's and 9 O's and I'm positive I didn't lose any. If I alternate, one side gets 5 &5 and the other side gets 5 & 4. Which side gets which?
re: repacking hubs. Did I do it right?DINOSAUR
Jul 16, 2001 12:37 PM
Hmmmmm I peaked at Zinn's Maintenance book and it does not address the fact that there are different sized bearings. I'd guess that the large one's go on the drive side, the way you did it. Sounds like you need adustment with the hub (pg 107 D 28-31). Sorry, my bike has cartridge bearing hubs. It's been decades since I over hauled a hub with bearings. You might try emailing Sheldon Brown at the Harris Cyclery, it would probably help to know what make hubs you have on your wheels. You might click on his site first (Harris Cyclery), he has an article about rebuilding hubs, but it's probably the same material covered in Zinn's book. Try calling your LBS and talking to the shop wrench?