http://moots.com/bbpress/topic.php?id=61 Rider's community and more. en-US Mon, 20 May 2013 07:25:11 +0000 http://bbpress.org/?v=1.0.2 q http://moots.com/bbpress/search.php http://moots.com/bbpress/topic.php?id=61#post-344 Sun, 24 Oct 2010 14:31:00 +0000 davidb 344@http://moots.com/bbpress/ <p>Thanks for the good data point. I think I'll pull mine out and stare at them. New bearings in the Ksyriums on my road bike made a world of difference, although the freewheel bushing was the real improvement.</p> <p>Good ride in a beginning storm yesterday. 'Lotsa wind, mud not bad yet. </p> http://moots.com/bbpress/topic.php?id=61#post-343 Sun, 24 Oct 2010 12:56:55 +0000 teamfubar 343@http://moots.com/bbpress/ <p>Rust on the "inner hole" shouldn't be a problem. Those inner portions don't move on the pivots (meaning the rusty part isn't sliding around the pivot, but held in place moving the bearing). Repacking those bearings would be a good way to extend the life until you can get a bearing set. I had a gritchy bearing on one of the rockers during the summer and I just popped the seal off, pushed in the grease, and it was smoother. Was it perfect? No, but it got me by until the end of the summer. </p> http://moots.com/bbpress/topic.php?id=61#post-342 Sun, 24 Oct 2010 09:13:26 +0000 Exie 342@http://moots.com/bbpress/ <p>Thanks Fubar, good tip! I didnt look at Ventana, I might just buy a kit from them, especially if I can get the proper tool.</p> <p>I wouldnt mind having a hardtail again, but I'm only allowed 1 bike, so the Cinco is it. I do commute to work on and ride it just about everywhere. Whilst I do strip it down and clean it at least once a week, I can accept it gets alot of use, through creeks, mud, snow, hucked off logs and boulders etc.... so I consider it reasonable wear 'n tear. I've got no question about quality of the original parts or anything, they've been great.</p> <p>Fortunately we're in summer now, so look forward to some good riding weather.</p> <p>DavidB - I did pop the seal off for curiosity, the grease was a dark grey color and had a sandy texture, so it looks like over time some junk has got in there. I am conscious not to use a pressure washer with the bike, so I'm assuming its from shinkage of the seals, cold icy water, or snow might be able to shink the seals enough to let some rubbish in ? (I'm no engineer, just guessing)</p> <p>I did think about re-packing the original units as they were only just starting to jam up, but the inner "hole" on most had some surface rust, and I didnt want to file it away in case it changed the size/shap and became a loose fit. Actually, looking at them, the lower pivot near the BB were much worse than the others, I probably could have only replaced these, but a whole fresh set means its all fresh and ready for action. :) </p> http://moots.com/bbpress/topic.php?id=61#post-341 Sat, 23 Oct 2010 16:58:23 +0000 davidb 341@http://moots.com/bbpress/ <p>Did you look under the seal of one of the old bearings? </p> http://moots.com/bbpress/topic.php?id=61#post-339 Sat, 23 Oct 2010 14:32:31 +0000 teamfubar 339@http://moots.com/bbpress/ <p>If you're needing to replace the bearings again, Ventana offers a bearing press/removal tool on their website, where they also offer a complete bearing kit. Though they don't list them, I am sure you can also get individual bearings (main pivot, rocker pivots, etc.) from either Ventana or Moots.</p> <p>On a related note, I just dropped my Cinco frame off at Moots on my way home after the 24 Hours of Moab for a frame refurbish and a new compliment of bearings. I rode my frame for 5 years before replacing the bearings, though I usually ride my hardtail or singlespeed when I know the trail/weather is gonna be sloppy. </p> http://moots.com/bbpress/topic.php?id=61#post-338 Sat, 23 Oct 2010 08:20:23 +0000 Exie 338@http://moots.com/bbpress/ <p>Hi Folks,</p> <p>Just an update, I went by the bearing shop today, but he didnt have much of a selection. So I just got plain stainless steal bearings.</p> <p>Just a tip, I had a bugger of a time aligning them to go in smooth, so if you want to try this at home, I recommend getting a proper bearing press to do it.</p> <p>With new bearings the bike is super-smooth, so I'm wrapped. :) </p> http://moots.com/bbpress/topic.php?id=61#post-337 Fri, 22 Oct 2010 20:47:23 +0000 Domestique 337@http://moots.com/bbpress/ <p>Exie mentions titanium bearings, do they exist? </p> http://moots.com/bbpress/topic.php?id=61#post-335 Fri, 22 Oct 2010 13:18:53 +0000 davidb 335@http://moots.com/bbpress/ <p>I use this source for industrial stuff all the time, and never any problems. The full and hybrid ceramic bearings get designed into semiconductor machinery due to chemistry problems, but I suspect that you don't have the same argon plasma environment to deal with, and lubricants are allowed so the ceramic is probably not as critical. I would first suspect the seals in the creaking, but if crud has got past the seals, and the bearings are corroded rather than just contaminated, than ceramic might be an improvement. Have you pulled the seal out of one of the old bearings? This might also be the trick on my old Smoothie. Avoiding the ceramic races is probably a good idea as they are a little tricky to install, and need a very stiff bore to avoid cracking. </p> http://moots.com/bbpress/topic.php?id=61#post-334 Fri, 22 Oct 2010 12:16:05 +0000 Exie 334@http://moots.com/bbpress/ <p>... just a followup, I've spent the last 30 minutes googling about bearings. It's a pretty interesting topic.</p> <p>So, I've read about these ABEC ratings that relate to smoothness &amp; quality, and came up with some of these:<br /> <a href="http://www.vxb.com/page/bearings/PROD/Kit7663" rel="nofollow">http://www.vxb.com/page/bearings/PROD/Kit7663</a></p> <p>They look like a good idea, stainless cage, ceramic balls, ABEC-7 should be smooth. Not sure about the load rating though ?</p> <p>I'll what my local shop has got tomorrow and keep you posted. </p> http://moots.com/bbpress/topic.php?id=61#post-333 Fri, 22 Oct 2010 11:27:14 +0000 Exie 333@http://moots.com/bbpress/ <p>Hey Folks,</p> <p>After 8 months of bush bashing in a wet winter, I think my bearings are about done. They've been creaking all week as I commute to work. Could have been the snow I was in last weekend ?</p> <p>Either way I've got the shits with it, so have poped them out, and heading down the bearing shop tomorrow morning.</p> <p>The main culprits are the lower 28mm OD units, they are a bit rusted up on the inner surface, does anyone know if you can get 320 stainless steel sealed bearings ? or even better some Ti bearings ?</p> <p>Should I ask for anything special at the shop ? last time I went there they gave me these "Nachi" units that were supposed to be ok &lt;shrug&gt;. </p>