Originally Posted by RGMN

Changing the bearings is easy. Remove the snap ring, pull the bearing, push the new bearing on, replace the snap ring. Takes about 5 minutes to do both sides, 10 if you need to pull the chainset. There are special tools out there to make this easier (I have the Park version) but any bearing puller that fits would work. I've changed the bearings with 2 small screwdrivers, you just need to be a little careful where you pry. The same Park tool will pull the PT arm if you have that version.

As far as finding Campag info, Campagnolo's website is best for the current parts, Branford bike has information on older Campagnolo (although they seem to a shadow of what they once had,) and the Eric Norris's long gone CampyOnly site had hordes of information. The good news is that the Wayback Machine did archive CampyOnly, but I haven't searched it to see how much information they actually archived.

Originally Posted by robertorolfo

Thanks for the feedback. I do plan on getting a bearing puller at some point (Campagnolo specific or otherwise), but haven't had the need for one yet. I also found a lot of old catalogs and parts diagrams on the disraeligears website, which is pretty easy to navigate.

Originally Posted by alcjphil

Whether you need to change bearings on an Ultra Torque crank can depend. Just this spring, I installed a new Chorus 11 speed compact crank on one bike to replace a 10 speed Ultra Torque Chorus crank(yes Ultra Torque came out before 11 speed). The bearings on the old crank are still perfect, smooth and without any play on a 10+ year old crank