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Campy Hub with different bearing sizes

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Campy Hub with different bearing sizes

Old 01-06-18, 10:39 AM
  #1  
Palmer
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Campy Hub with different bearing sizes

I have an early Campy freehub wheelset that I got off eBay a few years ago. I haven't used them much, but I finally decided to repack the bearings. I started on the rear, with no real problem disassembling the hub. However, as I got around to reassembling the hub, I noticed that I have 19 balls, nine 1/4" balls and ten 7/32" balls. Of course, I didn't notice the difference in size when I took the hub apart. The cones and races all appear to be in good shape. I thought that all Campy hubs used 1/4" balls. Anyone have any idea what's going on?
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Old 01-06-18, 11:23 AM
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Here is a link to Campy's spare parts cat. (Part B) from '94. If you scroll down to the hubs, you will see exactly what you're describing.

https://www.campagnolo.com/media/fil...994_part_C.pdf
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Old 01-06-18, 11:33 AM
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"early" is rather imprecise.. 70's Freewheel Campagnolo hubs were 1/4" ball filled races, as the PDF shows the later freehubs are not,

I expect, the driver itself has another set of bearings ..
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Old 01-06-18, 11:35 AM
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Thank you!

Thank you! I couldn't find that anywhere on the internet but here!
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