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 Post subject: Enduro XD-15
PostPosted: Fri Nov 06, 2015 10:29 am 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1066
Location: NorthEU
Thinking of the maintenance of bearings, could there really be a bearing sealed so great that it actually never needed to be service until it's time

to replace it?

I have always been told that ceramic bearings need more maintenance than steel bearings to work at their best and to maintain

lifetime.

All of you have probably checked bearings, but is it anyone using XD-15 bearings?

How are these, are they better sealed and perhaps maintenance free?

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 Post subject: Re: Enduro XD-15
PostPosted: Fri Nov 06, 2015 3:00 pm 
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Posts: 1114
Location: Canada
I've been using them for a few years now. They have always ran smooth, but I do periodically remove the seals and clean and regrease them. The grease gets dirty just like other bearings. There is a trick to removing and then reinstalling the seals because of the lip on the backside of the inner race and the split ring that captures it. But once you figure it out its easy peasy.

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 Post subject: Re: Enduro XD-15
PostPosted: Fri Nov 06, 2015 5:03 pm 
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Posts: 501
Mine died totally within half a year, and I only ride in perfect weather. It was my worst buy ever given the cost of it.

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 Post subject: Re: Enduro XD-15
PostPosted: Fri Nov 06, 2015 7:42 pm 
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Joined: Wed Mar 23, 2011 6:50 am
Posts: 112
Best BB I've used, other than MAYBE Campy's CULT bearings. I've also had Enduro Ceramic Grade 5 (radial), Kogul, BB30 XD-15, PF30 XD-15, and just purchased Torqtite PF30 XD-15 (screw together).

I've busted an XD-15 BB prematurely as well, but that's because of poor installation. They are the only BB that requires specifically 5nm of preload for the things to sit properly. Their provided wave washer is set at 5nm when fully compressed. Also, depending on your cranks (such as one that doesn't use a wave washer), you might have to check the torque after the first few rides. They get a lot better as they break in. Enduro's XD-15's do come with a one year warranty.

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 Post subject: Re: Enduro XD-15
PostPosted: Fri Nov 06, 2015 8:27 pm 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1066
Location: NorthEU
Thanks guys!

I am not sure these are for me then. I was told that all ceramic bearings are way more fragile than steel, they also need to be clean or they will damage much more

easy. This make me feel like i am not at all sure of the so called benefit of using them. Perhaps if they were all sealed and no possibility of dirt could enter, it would be

another thing. I think i would prefer a high end steel ball bearing and races bearing. Whatever that would be?

All tips are welcome. Actually i also noticed that bearings roll differently, better or worse or really good all pending on preload.

I find Shimano crank has the best preload system i have seen.

Though i feel weary of the thin axle of Shimano. I am not talking of the diameter, but the wall thickness of the axle.

Anyway, true high end/ high grade steel bearings (6806) tips would be appreciated!

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 Post subject: Re: Enduro XD-15
PostPosted: Sat Nov 07, 2015 11:57 pm 
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Joined: Wed Nov 21, 2012 3:05 am
Posts: 244
I have them on all 4 of my bikes and it is true about making sure they are torqued correctly. If not they will pit the steal and then they will have some play in them. The first time i spun the cranks and i saw how many times it went around, it was the only ones i wanted from then on. They are fine bearings, I am not sure how they would have been bad after a half year?


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 Post subject: Re: Enduro XD-15
PostPosted: Sun Nov 08, 2015 4:14 am 
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Joined: Thu Mar 24, 2011 6:06 pm
Posts: 501
Yeah I've no idea either because I am strictly a fair-weather cyclist, but the moment I asked my lbs to put them on for me they warned me that it's not gonna last cos they seen it break down pretty quickly. Might be one of those freak incidents and maybe a million out there working fine, but just reporting my particular case.

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 Post subject: Re: Enduro XD-15
PostPosted: Sun Nov 08, 2015 9:26 am 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1066
Location: NorthEU
What do you guys think of this bearing? Sure, it is a bit heavy...

http://wheelsmfg.com/bb86-to-30mm-sealed-bearing.html

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 Post subject: Re: Enduro XD-15
PostPosted: Sun Nov 08, 2015 5:42 pm 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1066
Location: NorthEU
Just read this:


As a Mechanical Design Engineer who has worked on bearing systems for high speed (10+K rpm) and incredibly stiff low speed intermittent motion systems; I strongly recommend AGAINST ceramic bearings for bicycle applications; unless you are a professionally supported racer.

Ceramic bearings are great - except you need a preload system that will compensate for the difference of thermal expansion over the operating temperature range to gain any benefit from them. A professional bike mechanic on hand all the time to adjust the bearings as the thermometer changes. If you don't have that kind of support; your ceramic bearings will only be better than 52100 steel at the very narrow temperature range they were tuned to; and that will only be for a few days.

The high speed spindles I worked on used 52100 (steel) bearings for several generations, then a generation of ceramic ball bearings (worst nightmare) and finally to hydrodynamic (self generating oil bearings) (not suitable for less than 3000 rpm).

The intermittent stuff used (and still uses) 440C (stainless steel) balls and raceways. It is not dissimilar to a headset application, except orders of magnitude smoother and stiffer. They are "sealed" ball bearings with plastic retainers and very low grease loading - all chasing smoothness. Full compliment bearings were tested - not smooth enough because of ball bumping (even class 1 balls have variance in diameter).

My bikes all use 52100 ball bearings; and boat trailer wheel bearing grease; wheels, BB, and headset.

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 Post subject: Re: Enduro XD-15
PostPosted: Sun Nov 08, 2015 5:45 pm 
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Joined: Sun Oct 07, 2012 2:39 am
Posts: 609
Location: Blacksburg, VA
I ride XD-15 A/Cs on both my BB30 and PF30 MTBs.

They are more durable than anything else I've used. Yes, there is some sticker shock. But they keep going, and going, and going.

And, I'd be willing to bet that my MTBs see worse conditions than what fair weather road bikes will see.


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 Post subject: Re: Enduro XD-15
PostPosted: Sun Nov 08, 2015 5:52 pm 
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Joined: Wed Jan 10, 2007 10:56 pm
Posts: 1114
Location: Canada
wheelsONfire wrote:
Just read this:


As a Mechanical Design Engineer who has worked on bearing systems for high speed (10+K rpm) and incredibly stiff low speed intermittent motion systems; I strongly recommend AGAINST ceramic bearings for bicycle applications; unless you are a professionally supported racer.

Ceramic bearings are great - except you need a preload system that will compensate for the difference of thermal expansion over the operating temperature range to gain any benefit from them. A professional bike mechanic on hand all the time to adjust the bearings as the thermometer changes. If you don't have that kind of support; your ceramic bearings will only be better than 52100 steel at the very narrow temperature range they were tuned to; and that will only be for a few days.

The high speed spindles I worked on used 52100 (steel) bearings for several generations, then a generation of ceramic ball bearings (worst nightmare) and finally to hydrodynamic (self generating oil bearings) (not suitable for less than 3000 rpm).

The intermittent stuff used (and still uses) 440C (stainless steel) balls and raceways. It is not dissimilar to a headset application, except orders of magnitude smoother and stiffer. They are "sealed" ball bearings with plastic retainers and very low grease loading - all chasing smoothness. Full compliment bearings were tested - not smooth enough because of ball bumping (even class 1 balls have variance in diameter).

My bikes all use 52100 ball bearings; and boat trailer wheel bearing grease; wheels, BB, and headset.

Wellllll........I doubt this makes any real difference in the conditions your bike sees. Hard to believe the narrow temperature range riding creates any meaningful change in dimensions to cause your preload to change. In any case the wavy washer compensated for some preload change anyhow. Sounds like this person is not a bike rider and is speaking from a very theoretical position. My xd15 bb has lasted 4 years now. No issues.

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 Post subject: Re: Enduro XD-15
PostPosted: Sun Nov 08, 2015 6:04 pm 
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Joined: Wed Mar 23, 2011 6:50 am
Posts: 112
Bikeradar.com said, "[it] Enduro's new XD-15 is unquestionably the best bottom bracket we've used."

"In fact, we had one tester run an XD-15 on his everyday commuter bike through an entire Colorado winter – snow, ice, sand, magnesium chloride, and all.

As if that weren't demanding enough, we ran the entirety of the test with all of the seals removed."

Check out there review: http://www.bikeradar.com/us/gear/catego ... -13-47132/

I agree with LeDuke and BikeRadar. It's been the best bb in terms of smoothness, durability, and longevity. Especially with the high stress application that is the BB30/PF30 system. I also train and commute regularly in the rain.

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 Post subject: Re: Enduro XD-15
PostPosted: Mon Nov 09, 2015 5:31 am 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1066
Location: NorthEU
Well and we have

http://www.ultimateceramicbearings.co.u ... product=46

http://www.kanzen-roulement.com/boutiqu ... route-vtt/

Cycling ceramics and Kogel....

A pair of XD-15 6806Vv cost and arm and a leg in EU.

It seems Cycling ceramics and Kanzen are about the better priced for us in EU.

I really don't know what is really better in the other bearings such as XD-15 or the UCB Nanotech?

I would love to see someone being as enthusiastic about setting out to make a super set of steel bearings.

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 Post subject: Re: Enduro XD-15
PostPosted: Mon Nov 09, 2015 6:51 am 
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Joined: Wed Mar 23, 2011 6:50 am
Posts: 112
Here you go:

Enduro Torqtite BB PF30 Angular Contact Steel Bearings

Wheels Manufacturing has a threaded BB using Enduro's angular bearings (non-ceramic):
http://wheelsmfg.com/pf30-threaded-angu ... black.html

Another Wheels Mfg option that's even cheaper, non-threaded/angular:
http://wheelsmfg.com/pf30-angular-contact-bb-black.html

_________________
2016 Cannondale SuperSix EVO Hi-MOD IN PROGRESS
2014 Cannondale SuperSix EVO Hi-MOD, 5.79kg RETIRED
2014 Cannondale CAAD10, 6.83kg RETIRED


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 Post subject: Re: Enduro XD-15
PostPosted: Mon Nov 09, 2015 9:29 am 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1066
Location: NorthEU
DCnoJ,

i run direct-fit 6806 bearings! I would like some porn steel bearings. Not the usual types i have

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