brianjonesphoto Posted July 19, 2012 Report Share Posted July 19, 2012 (edited) How long do rear wheel bearing last for you? I replace the one on my 4rt about 3-4 months ago with good quality skf bearings. Last night while I was installing a new sprocket I notices fhpse. Eating are already very notchy feeling, but there is any play yet. It seems to me they should last a whole lot longer. I mostly use the bike from trail riding. I would guess I have about 400 miles on these bearing. The have see their fair share of mud but never with more than a garden hose. I even Froze the bearing and heated the hub so I didn't need to use much effort to press them in when installed. Any thoughts? Thanks Edited July 19, 2012 by brianjonesphoto Quote Link to comment Share on other sites More sharing options...
jse Posted July 19, 2012 Report Share Posted July 19, 2012 How long do rear wheel bearing last for you? I replace the one on my 4rt about 3-4 months ago with good quality skf bearings. Last night while I was installing a new sprocket I notices fhpse. Eating are already very notchy feeling, but there is any play yet. It seems to me they should last a whole lot longer. I mostly use the bike from trail riding. I would guess I have about 400 miles on these bearing. The have see their fair share of mud but never with more than a garden hose. I even Froze the bearing and heated the hub so I didn't need to use much effort to press them in when installed. Any thoughts? Thanks Be sure to pack the bearing with grease before installing. Check the torque setting on the rear axle, they are often over-tightened and this exerts excess side loads on the races. Jon Quote Link to comment Share on other sites More sharing options...
pindie Posted July 19, 2012 Report Share Posted July 19, 2012 They should last longer than that unless dodgy. Agreed on the over tightening as well. Quote Link to comment Share on other sites More sharing options...
nh014 Posted July 19, 2012 Report Share Posted July 19, 2012 I'm not sure what you are doing, but a quality sealed bearing like SKF, properly installed, should last for a couple of seasons. Quote Link to comment Share on other sites More sharing options...
brianjonesphoto Posted July 19, 2012 Author Report Share Posted July 19, 2012 I just double checked the torque spec and yes they have been over tighten by about 20%. I was confusing axel specs with my other bikes. Thanks guys. Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted July 19, 2012 Report Share Posted July 19, 2012 i would be more than happy at approx 400 miles , wheel bearings dont tend to last long ,,cant see over tightening of wheel will have any affect at all on bearing life as they arnt taper bearings ,life could be prolonged by removing inner seals and greasing inside hub also fitting of extra external dust seals would be good Quote Link to comment Share on other sites More sharing options...
toothandnail Posted July 20, 2012 Report Share Posted July 20, 2012 I've only ever replaced wheel bearings in 1 bike , that was my 08 GG . replaced in 2010 , which I thought VERY premature , Have an 03 & 04 pretty sure still original bearings. Quote Link to comment Share on other sites More sharing options...
paul w Posted July 20, 2012 Report Share Posted July 20, 2012 2010 evo on original bearings (loads of use) NEVER pressure wash. remove dust covers and re-pack 3-4- times a year. overtightening will reduce life because you will crush the centre spacer and place side load on the bearing and overheating it. Quote Link to comment Share on other sites More sharing options...
trickymicky Posted July 20, 2012 Report Share Posted July 20, 2012 You may have been sold inferior,fake SKF bearings.- http://www.skf.com/files/891104.pdf Quote Link to comment Share on other sites More sharing options...
0007 Posted July 20, 2012 Report Share Posted July 20, 2012 I don't really trust the machining tolerance on stuff not built in Japan My beta's are tight as heck, the bearing would hardly turn in the wheel but felt new after removal so I suspect there could be some clearance issues I agree with the comments about regreasing the bearings, I blow out the stuff that's in there and replace it with optimol grease, that stuff is incredible You might want to find the correct spec for the axle spacer and measure yours, it could be collapsed from over torquing at some point or just out of spec Quote Link to comment Share on other sites More sharing options...
pindie Posted July 20, 2012 Report Share Posted July 20, 2012 Mine are 5 years old and sweet. never aim the pressure washer at the gap. Rest the nozzle on the sidewall of your tyre so no force goes against the seal. Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted July 20, 2012 Report Share Posted July 20, 2012 2010 evo on original bearings (loads of use) NEVER pressure wash. remove dust covers and re-pack 3-4- times a year. overtightening will reduce life because you will crush the centre spacer and place side load on the bearing and overheating it. i think the threads would strip before this happens Quote Link to comment Share on other sites More sharing options...
paul w Posted July 21, 2012 Report Share Posted July 21, 2012 paul w, on 20 July 2012 - 09:56 AM, said: 2010 evo on original bearings (loads of use) NEVER pressure wash. remove dust covers and re-pack 3-4- times a year. overtightening will reduce life because you will crush the centre spacer and place side load on the bearing and overheating it. i think the threads would strip before this happens I have seen it happen to rev3's all the time. centre spacer really soft with hardly any face. Quote Link to comment Share on other sites More sharing options...
cub595 Posted July 21, 2012 Report Share Posted July 21, 2012 When you fit bearings you shouldn't hit the center of the bearing. I use a suitably sized socket which applies the force to the outer race. This will stop "brinelling" the bearing races causing notchiness. Also, it should not matter how tight you do up the wheel nuts as this will not load the bearings as there is a spacer between them so only the inner race is clamped up. I think you have to accept that if you ride off road wheel bearings don't last that long even if they are good quality. Quote Link to comment Share on other sites More sharing options...
pindie Posted July 21, 2012 Report Share Posted July 21, 2012 Careful fitting is paramount but I have always got years out of wheel bearings in various off road Msports. Probably more to how you fit them (use a press and the old bearing race to push in) and how you clean the area around the bearing with water. Another thing I was always told to do was make sure no grease is oozing out the bearing. If you have this outside the seal it drags muck and grit into the bearing. The seals only seal if onto clean metal. Never over grease bearings! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.