How to remove the wheel bearings?

[Rianna]

Here's another one.

[Rianna]

And one more.

[Rianna]

There's also some damage, from tools maybe or something else, on the part in the middle that stays on the rim when you take the rotor off. I think it was in that first pic that came out so blurry. I was trying to get a clear shot of it. Don't know if that would actually interfere with anything, though.

[Hoolander2]

At first, the first blurry pic makes it look like the bearing is not centered but I guess that's just due to the rubber seal being worn on one side? 

Only thing that jumps out at me then is those weird radial lines on your disc/rotor.  They are obviously some kind of wear pattern but I have no experience diagnosing those. 

Guys, what would cause those?  Are they normal? 

And, oh yeah, I do see that off center look on the other side too.  That side seems to be a "sealed" bearing which you wouldn't be able to grease anyway. 

[TechGuy]

Rhiaaa,

I don't remember what scoot you have...

I looked around and found this page that has some good "free" information.  http://www.dansmc.com/wheelbearing.htm

I looked in the service guide for my P250 and , while it doesn't say it in as many words to pound out the bearings ...It says "BEARING REPLACEMENT Remove the front wheel bearings and distance collar." and the photo shows a drift (a tapered shaft used to drive items) and a small sledge or mallet. The distance collar is small shaft between the bearing to keep the two bearing the correct distance apart from each other.

Dan's MC page above also shows the bearing tool being used, a sockect being used instead and third alternative that requires less brute force but requires a threaded shaft, a couple bolts and some washers (all cheap at HomeDepot/Lowes or sometimes be salvaged from an old lamp)

Here is the bearing puller http://www.dansmc.com/wheel_bearing_tool2.jpg

[wordslinger]

Only thing that jumps out at me then is those weird radial lines on your disc/rotor.  They are obviously some kind of wear pattern but I have no experience diagnosing those. 

Guys, what would cause those?  Are they normal?


..no, they ARE NOT NORMAL!!!


..i do not know what might have caused them...

[wordslinger]

..i would definately replace the disc, tho...and probably NOT worry about the bearings...

..stay focused on your original "brake noise" issue...


..maybe a loose caliper might have caused that type of wear pattern...

[Rianna]

At first, the first blurry pic makes it look like the bearing is not centered but I guess that's just due to the rubber seal being worn on one side? 

Only thing that jumps out at me then is those weird radial lines on your disc/rotor.  They are obviously some kind of wear pattern but I have no experience diagnosing those. 

Guys, what would cause those?  Are they normal? 

And, oh yeah, I do see that off center look on the other side too.  That side seems to be a "sealed" bearing which you wouldn't be able to grease anyway. 

Thanks, Hoolander. The bearings may be alright. That one seal is messed up a bit. I might order another one. I don't remember the exact price, but I don't think they were terribly expensive. The OEM bearings were not as high priced as I expected them to be and may be found cheaper if I was to search around. The lines on the rotor I know nothing about either. Maybe I will need to take a closer look at the caliper too to make sure all is well. Honestly, if I had the money, I would replace it all at one time and start fresh just for the peace of mind of knowing what's what in that front end. Thank you, Hoolander.

[Rianna]

Rhiaaa,

I don't remember what scoot you have...

I looked around and found this page that has some good "free" information.  http://www.dansmc.com/wheelbearing.htm

I looked in the service guide for my P250 and , while it doesn't say it in as many words to pound out the bearings ...It says "BEARING REPLACEMENT Remove the front wheel bearings and distance collar." and the photo shows a drift (a tapered shaft used to drive items) and a small sledge or mallet. The distance collar is small shaft between the bearing to keep the two bearing the correct distance apart from each other.

Dan's MC page above also shows the bearing tool being used, a sockect being used instead and third alternative that requires less brute force but requires a threaded shaft, a couple bolts and some washers (all cheap at HomeDepot/Lowes or sometimes be salvaged from an old lamp)

Here is the bearing puller http://www.dansmc.com/wheel_bearing_tool2.jpg

Thank you so much, TechGuy! This is very helpful info with Great Pics! I really appreciate it!!

[wordslinger]

..i find myself looking at that more and more....

..none of my scoots show that wear pattern whatsoever...

..i reckon a loose wheel could also have caused that pattern, and i'm also wondering about the seemingly off-center seal of your bearings...

..imma venture a guess here, that somebody has worked on that front-end...replaced the bearings, because they DONT look like OEM...and it's very easy to "smear" the sealing material that protects the bearing during installation...

..yeah that much is probably ok ...

..if they didn't properly seat either the wheel fasteners, or the caliper fasteners, i'd suspect that the disc could be subjected to wear in the way it has...

..think of a high pitch wobble, especially when braking...

[Hoolander2]

Yeah, at any rate, something doesn't seem kosher about the bearings.  I'd bang em out n don't worry about damaging them, just replace em.  See about getting the disc trued up at a brake shop too.  You say you got a new axle to go in?   

[wordslinger]

..a warped axle could also cause that...

[Rianna]

..i find myself looking at that more and more....

..none of my scoots show that wear pattern whatsoever...

..i reckon a loose wheel could also have caused that pattern, and i'm also wondering about the seemingly off-center seal of your bearings...

..imma venture a guess here, that somebody has worked on that front-end...replaced the bearings, because they DONT look like OEM...and it's very easy to "smear" the sealing material that protects the bearing during installation...

..yeah that much is probably ok ...

..if they didn't properly seat either the wheel fasteners, or the caliper fasteners, i'd suspect that the disc could be subjected to wear in the way it has...

..think of a high pitch wobble, especially when braking...

Thank you, wordslinger! I don't know why they replaced the original bearings so soon on this scoot really. (@ 500 km??) They could be fine since they are most likely fairly new...being they are not the original ones. If I could get them out I would probably replace them...but...I also am starting to see some wisdom in what you said earlier about replacing one thing at a time then checking for the same symptoms. I don't know if the rotor is the original one or not. I'll definitely replace the rotor, though. I just know that it will make me crazy if I put a new rotor on and then find that it is still not right and I still can't ride it.

[Rianna]

Hmm...a warped axle? I never thought of this. Will it look warped??

No, Hoolander, I don't have a new axle. I'm going to check the price. 

[wordslinger]

Will it look warped??


..you should be able to roll it across a known flat surface to tell...

..should roll smooth, with no deflection...