Hub maintenance

Discuss light weight issues concerning road bikes & parts.
Stockie
Posts: 350
Joined: Mon Aug 20, 2007 7:24 pm

by Stockie

Hi,

After 1,5 years, my rear hub of my Easton EA90 Aero is getting a little 'rough'. The front is still find, but maybe it's time to service the bearings. Could you help me on this one? I all ready took the end caps of, but the bearings are still in the hub.

Thanks in advance
I Will make the leap

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Giant DK
Posts: 1312
Joined: Mon Jan 23, 2006 3:03 pm
Location: Denmark

by Giant DK

Check this. It should answer all your questions 8)

http://www.eastonbike.com/TECHNICAL/tec ... rvice.html
Technical editor at Cykelmagasinet Denmark

My Simplon Pavo II

Stockie
Posts: 350
Joined: Mon Aug 20, 2007 7:24 pm

by Stockie

I know that web page. But, do i need to remove the bearings out of the hub? Can't i lube the bearings while they are still mounted? I don't have the material to disassemble and reassemble the bearings.
I Will make the leap

mattr
Posts: 3499
Joined: Fri May 25, 2007 6:43 pm
Location: The Grim North.

by mattr

Trip to your LBS then, lubing worn out cartridge bearings is a waste of time, they'll be rough again in days or weeks (depending how much you use them)

The only real way to "service" them is to pop them out and replace them.

Gregorio
Posts: 1582
Joined: Thu Jul 26, 2007 10:24 pm
Location: Center of the Universe

by Gregorio

Try cleaning and lubing the pawls inside the freehub first.

Stockie
Posts: 350
Joined: Mon Aug 20, 2007 7:24 pm

by Stockie

All ready done that.
There is just a tiny little roughness in 1 of the cartridge bearings of the wheal itself. So i don't think the bearings are completely worn out.
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legs 11
Posts: 3657
Joined: Tue Jan 23, 2007 11:22 am
Location: Leg hurty

by legs 11

Stockie, if you have even a tiny bit of roughness in a cartridge bearing you'll need to replace it.
It's not rough because it has no lube, it's because either the race is pitted with oxidation or the balls are rusty and lost their chrome plating.
Either way, you won't improve it by lubing alone. :wink:
Pedalling Law Student.

DaveS
Posts: 2529
Joined: Fri Mar 24, 2006 1:26 pm

by DaveS

The balls are not chrome plated, but yes, they could get rusted and rough if you ride in the wet.

Stockie
Posts: 350
Joined: Mon Aug 20, 2007 7:24 pm

by Stockie

ok,
I'll let my LBS check them out. If they need replacement, do you guys know what the Easton bearings cost?
And is it any better to install hybrid ceramic bearings, or is that extra money for nothing?
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legs 11
Posts: 3657
Joined: Tue Jan 23, 2007 11:22 am
Location: Leg hurty

by legs 11

Stockie, clean your bearings after you've removed the dustcaps, and read the number that's written on the seal (you may need a magnifying glass or outdoor light) it'll be something like 6000 2RS or something like that, these numbers correspond the the dimensions and seal type.
Go to VRX bearings and put the number in the bearing search box and it'll give you a selection of different bearings at different price points from full ceramics to hybrids to stainless steel to standards.
Just be sure to get the ones that are sealed on both sides....that's what the 2RS in the code stand for.
It'll be loads cheaper than sourcing them from Easton and much easier as VRX ship globally and only take a few days to europe.
Hope this helps, Rob. :thumbup:
Pedalling Law Student.

Stockie
Posts: 350
Joined: Mon Aug 20, 2007 7:24 pm

by Stockie

Thanks for the advice.
If i reassamble them, should i put grease om some specific places? (axle,...) If so, what type of grease?
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Phill P
Posts: 1852
Joined: Sat Jun 02, 2007 1:10 am
Location: Melbourne, Australia
Contact:

by Phill P

Try what ever your bike shop has for repacking shimano or campy hubs.

But other have said if the bearing is already feeling rough then there is already damage internally. Had you lifted the seal and replaced the grease earilier you could have got more life out of them. That said if it is a full contact seal then the seals might be too tight to lift with a nail file etc and you'll damage them, and the bearing will leach grease out/dirt in and the bearing will soon die anyway.
I highly recommend doing this for people who have hybrid bearings and ride in harsher conditions as the seals are low friction seals and not as tight and as a result the grease suffers more.

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kman
Posts: 1094
Joined: Wed Jul 13, 2005 10:51 am
Location: Sydney, Australia

by kman

legs 11 wrote:Stockie, clean your bearings after you've removed the dustcaps, and read the number that's written on the seal (you may need a magnifying glass or outdoor light) it'll be something like 6000 2RS or something like that, these numbers correspond the the dimensions and seal type.
Go to VRX bearings and put the number in the bearing search box and it'll give you a selection of different bearings at different price points from full ceramics to hybrids to stainless steel to standards.
Just be sure to get the ones that are sealed on both sides....that's what the 2RS in the code stand for.
It'll be loads cheaper than sourcing them from Easton and much easier as VRX ship globally and only take a few days to europe.
Hope this helps, Rob. :thumbup:


Good post, do what legs says.
You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer.
-- Frank Zappa

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cryoplasm
Posts: 852
Joined: Wed Feb 20, 2008 11:20 pm

by cryoplasm

Which is why you need lube to waterproof the bearings from the outset.

As has been pointed out, a replacement bearingset will be required.

old_fat_and_slow
Posts: 46
Joined: Fri Sep 26, 2008 5:37 pm

by old_fat_and_slow

Can somebody provide a link to a supplier of VRX bearings. I've done a Google search and I'm coming up with nothing.

Thanks,

Never mind. I believe the correct brand is VXB bearings. Correct me if I'm wrong.

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