> From: "George Rausch" <george.rausch@cityofmonett.com>
> .... I always thought the small holes in the
> end dust caps on all my Campy hubs were for injecting grease directly into
> the bearing races. It sure seems to work on my hubs, whether it's designed
> for that or not. You don't have to take hubs apart, just inject grease
> directly with your Dual-Co gun, once a year. It always seemed to me that the
> middle-hole in the axle shaft was just for decoration.
as appealing as that sounds, I have to recommend against it. I bought a pair of wheels (with Campy Record hubs) from a fellow who had been doing exactly as you recommend. He never tore the hubs down to look inside. Well, when I disassembled them, it was apparent that the new grease was going in the little hole and right out around the axle. The new grease never did get in to the bearings, and never purged out the old grease to any extent. Not sure if it's related, but I had to replace one of the cups. The virtue of the oil hole in the middle of the hub is that new grease would be more likely to push the old grease out. Better to just take the hub apart, clean it up, and reassemble. Not that much work, especially if you just use new balls each time.
Steve Kurt Peoria, IL (and I can recommend Peter Jon White to anyone wondering where/how to replace a cup in these hubs)