UT Bearing Maintenance

[krooj]

I finally hit that special moment when one of my bikes started to "feel" it's age - stuff just starts needing work after 14 years. In this case, a quick ride up to Mill Valley yielded a bunch of creaking, brake rub, and less-than-stellar shifting. In this case, it's a 2008 Marinoni Piuma that started life with Centaur 10 and is currently running some '15 Chorus 11.

Decided to overhaul the crank assy, which means new rings, cups, and bearings, but I am curious: what tools are folks using to pull and press UT bearings? I had a look at the Park kit, and it's pretty foul (looks like Harbor Freight quality), so went with Enduro... Campy doesn't appear to have an official tool for this?

[AngryScientist]

It's not a piece of jewelry, but the park tool is perfectly functional for UT bearing service in my experience.

[Gibran]

Originally Posted by AngryScientist

It's not a piece of jewelry, but the park tool is perfectly functional for UT bearing service in my experience.

+1. Same experience with the Park Tool set. Works great and is holding up well.

[robertbb]

Originally Posted by krooj

I finally hit that special moment when one of my bikes started to "feel" it's age - stuff just starts needing work after 14 years. In this case, a quick ride up to Mill Valley yielded a bunch of creaking, brake rub, and less-than-stellar shifting. In this case, it's a 2008 Marinoni Piuma that started life with Centaur 10 and is currently running some '15 Chorus 11.

Decided to overhaul the crank assy, which means new rings, cups, and bearings, but I am curious: what tools are folks using to pull and press UT bearings? I had a look at the Park kit, and it's pretty foul (looks like Harbor Freight quality), so went with Enduro... Campy doesn't appear to have an official tool for this?

This one is mint.

No hammering or tapping required, twist and pull/push:

https://www.superbiketool.com/en/pro...k_tool/TB_BP10

[oldpotatoe]

Originally Posted by krooj

I finally hit that special moment when one of my bikes started to "feel" it's age - stuff just starts needing work after 14 years. In this case, a quick ride up to Mill Valley yielded a bunch of creaking, brake rub, and less-than-stellar shifting. In this case, it's a 2008 Marinoni Piuma that started life with Centaur 10 and is currently running some '15 Chorus 11.

Decided to overhaul the crank assy, which means new rings, cups, and bearings, but I am curious: what tools are folks using to pull and press UT bearings? I had a look at the Park kit, and it's pretty foul (looks like Harbor Freight quality), so went with Enduro... Campy doesn't appear to have an official tool for this?

I use Cyclus tools to both pull and install the bearings.

[wallymann]

Originally Posted by robertbb

No hammering or tapping required

i dont see the issue...press-fit bearings have been dealt with in this fashion for eons.

[Tommasini53]

Originally Posted by Gibran

+1. Same experience with the Park Tool set. Works great and is holding up well.

I had success with the Park tool. Probably correct about the Harbor Tool option. I wish I had scored one of those Cyclus tools Old Potato mentions as the Park tool does not help with the re-install. I've also found that a couple of small pic tools (also Harbor Freight) are good for lifting out bearing seals. Cleaning and repacking has worked very well.

[oldpotatoe]

Originally Posted by wallymann

i dont see the issue...press-fit bearings have been dealt with in this fashion for eons.

Yup, when done correctly a hammer is fine. But, oh so often, that 'thing' they put onto the bearings doesn't sit cleanly on the outboard 'race' and killed bearings are a result. That's the 'issue'...A proper press won't kill the bearings.

[AngryScientist]

I dont use a hammer with my park tool. I use a big C clamp in the bench vise with a wooden block and press the bearings on.

[El Chaba]

I use the Park tool and have found it to be fine. A couple of comments about the bearings themselves….A pick tool was mentioned to remove the bearing seals…This is helpful to do. If you haven’t roached out the bearings and are doing preventative maintenance, you can peel off the seal and clean the bearings with solvent. Check the bearing by rotating it as sometimes the solvent washes dirt inside the bearing. Let the solvent dry thoroughly and then regrease the bearing while rotating it to ensure that the grease has fully penetrated. I pack the bearings full as the grease serves as a seal as well as a lubricant. Replace the seal and install. Remember to make sure that the seal is on the outboard side as the whole system is really rather minimally sealed. I also check new bearings for grease as sometimes the amount they come with varies. I use a synthetic grease from Var that seems to hold up well and is pretty waterproof. These steps seem to help some with extending the bearing life for UT setups…

[krooj]

Originally Posted by oldpotatoe

I use Cyclus tools to both pull and install the bearings.

I assume you ordered that tool set from the EU? I can't see to find a US site that sells Cyclus, which is why I went Enduro. Not thrilled about having to tap the fresh bearings in, since it seems like a recipe for annihilation.

[wgp]

Double post

[wgp]

Originally Posted by krooj

I assume you ordered that tool set from the EU? I can't see to find a US site that sells Cyclus, which is why I went Enduro. Not thrilled about having to tap the fresh bearings in, since it seems like a recipe for annihilation.

Thread revival here for source of Cyclus Tools …

Cyclus tools are tough to find in US. I’ve ordered from Bike Components in Germany with a very good price (among the best I’ve seen) and speedy shipping.. But … high shipping costs so it pays to order a number of items to be sure!

https://www.bike-components.de/en/

[oldpotatoe]

Originally Posted by wgp

Thread revival here for source of Cyclus Tools …

Cyclus tools are tough to find in US. I’ve ordered from Bike Components in Germany with a very good price (among the best I’ve seen) and speedy shipping.. But … high shipping costs so it pays to order a number of items to be sure!

https://www.bike-components.de/en/

https://www.unitedbicyclesupply.com/index.cgi