Are you able to lube the BB bearings of a Campy Chorus or Record?

Do you need a different BB socket for Campy than Shimano?

If you're talking about square taper BBs, both have sealed cartridge bearings. It's really not feasible to lube them, but they can be replaced.

A Campy cassette lockring tool is also used to remove and install the BB cups.

I don't know if it has a square taper or not. He just bought it and I went on his first ride with him. The bottom bracket was making a brushing noise when he was pedaling. He bought a carbon custom fit Guru with Campy at the factory in Canada. He went there to get measured and ordered the bike. They shipped it to him this past week. He got a 10 speed Campy with 53/39 chainring. I don't know much more than this other than it cost him $5,300. When he got the bike, he felt that he was too bent over and went to a local bike shop and had the fairly flat carbon stem replaced with a steeply angled aluminum stem to raise him up.

Campy only makes two kinds of cranks, the old square taper models which have an 8mm hex socket bolt holding the crankarms in place, or the new UT model with a large diameter hollow axle.

You need to visit www.campagnolo.com.

IThe bottom bracket was making a brushing noise when he was pedaling.

How do you know this? Noises associated with pedaling can come from pedals, cleats, cranks, chainring bolts, wheels, saddle & post, bar & stem, contact by the FD cable or computer magnet, and on and on. Noises can travel through the frame and seem to come from somewhere far away from the source. If the crank arms don't have side to side play, and if they turn smoothly (chain off the chainrings to check this), then it's not the bearings.