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 Post subject: Re: Powertap G3 bearings
PostPosted: Thu Jan 30, 2014 9:15 am 
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Joined: Tue Jan 23, 2007 11:22 am
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Location: Leg hurty
Will try and find them later this morning. I have a book with all the bearing specs written down somewhere.

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 Post subject: Re: Powertap G3 bearings
Posted: Thu Jan 30, 2014 9:15 am 


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 Post subject: Re: Powertap G3 bearings
PostPosted: Thu Jan 30, 2014 10:03 am 
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Joined: Tue Jan 23, 2007 11:22 am
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Location: Leg hurty
I have four 61802 2RS bearings listed for the G3 hub with a 15mm axle.
That measurement is 24mm Outside diameter, 15mm inner diameter and 5mm width.
I also have a note on it as that says 2011 only (can't remember why, but presumably there were other options at some point)
Back a couple of years ago Saris were selling these crappy old bearings for £15 each! You can get this type of cheap bearing for £2-3 at a bearing dealers?
Inexpensive stainless is the way to go, or SKF or something like that.
Hope that helps.

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 Post subject: Re: Powertap G3 bearings
PostPosted: Thu Jan 30, 2014 8:24 pm 
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Joined: Wed Mar 17, 2010 12:04 am
Posts: 98
Any idea of paligap turn around time?

LBS said a week but I got the impression they were guessing to keeps happy.


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 Post subject: Re: Powertap G3 bearings
PostPosted: Thu Oct 16, 2014 10:18 pm 
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I tried to replace the nds side bearing of my g3 hub. I pressed the axle from ds, and I was able to push nds the bearing out from the hole by 5mm, but after that it didn't come out more no matter how I hammered or pushed the axle. What am I doing wrong? I had to push it back. Hope I didn't broke anything..


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 Post subject: Re: Powertap G3 bearings
PostPosted: Thu Apr 23, 2015 4:59 pm 
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Location: Ruidoso, NM
Nailoni wrote:
I tried to replace the nds side bearing of my g3 hub. I pressed the axle from ds, and I was able to push nds the bearing out from the hole by 5mm, but after that it didn't come out more no matter how I hammered or pushed the axle. What am I doing wrong? I had to push it back. Hope I didn't broke anything..


I'm resurrecting this thread because I'm curious about replacing bearings in the G3. I know that PT says you need to send it in like all prior hubs, but we could always do it ourselves quite easily before.

Anybody got experience with the G3? Because it would not be good if they've made this impossible... I mean extremely difficult, to do yourself. Bearings simply don't always last that long in some conditions.

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 Post subject: Re: Powertap G3 bearings
PostPosted: Thu Apr 23, 2015 5:41 pm 
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Joined: Tue Sep 11, 2012 6:07 pm
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Location: The Lone Star State
Anyone have experience with the new GS hubs? The internals are DT Swiss, so I'm wondering if the bearings are the same ones DT uses, as well.

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 Post subject: Re: Powertap G3 bearings
PostPosted: Fri Apr 24, 2015 6:03 am 
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Joined: Fri Jul 18, 2008 8:25 pm
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Location: UK
Powertap hub bearings are very sensitive to poor dropout alignment and I suspect this is the #1 cause of premature failure. I got a frame warrantied for this reason. It explains why there is a big spread in bearing life. Surely Powertap/Cyclops must know by now that the bearings are 'crap'. So why would they keep spec'ing them?


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 Post subject: Re: Powertap G3 bearings
PostPosted: Fri Apr 24, 2015 3:58 pm 
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Location: Ruidoso, NM
dynaserve wrote:
Powertap hub bearings are very sensitive to poor dropout alignment and I suspect this is the #1 cause of premature failure.


That could be true for the NDS hub bearing since the cap was sort of loose and pressed right against the inner race of that bearing. The G3 is a little different, so they probably fixed that problem. But legs 11 above stated that the G3 takes 4 6802 bearings, which are very small and low load capacity.

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 Post subject: Re: Powertap G3 bearings
PostPosted: Sat Dec 19, 2015 9:49 pm 
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Powertap bearings are very sensitive to pre-load, you can have them perfectly set with the wheel unmounted on your bike
but when you pull the skewer and tighten the wheel into the frame they overload causing premature failure. The best way
is by trial and error backing off the bearing load until when mounted in the frame their is some play rocking the wheel then
slightly tighten until its gone. I have the early 12mm hub and have to use locktight on the nut threads so they don't walk tighter.
Often times what feels like rough hub bearings are really rough cassette carrier bearings which I have had to change out more frequently.
Do the same proceedure with the hub carrier and its bearings will last much longer too.
I have 20k miles on Phil Wood Extreme Duty hub bearings and still running smooth.


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