Bearing help.

VonYinzer

VonYinzer

Over 10,000 Posts
Im running an XS1100 19" mag wheel on the front of the chop. Im also running the stock 350 forks and 15mm axle. Soooo... I need new wheel bearings the will properly seat in the wheel and fit the 15mm axle. Im sure there are some out there, just not sure where to look. Ill be headed to the shop today to get a measurement on the bearing (outer), unless of course someone here knows what it is ;) before I get home... Anyhow, who do use for bearings? I need someone that ships relativly quickily, and isnt going to charge me 4x what they should. Thanks all.
-Mike
 
bearing dist. in sewickley. 412-324-9586. might be able to pick them up in person and save shipping.
 
I just did a front end swap and went through the same thing. I got the ID and OD I needed from the All Balls Racing site, and from motorcycleproducts.co.uk, then ordered the correct bearings from McMaster-Carr (mcmaster.com). I didnt see the xs1100 listed on the .uk site though, so I dont know the OD you need. Guess I'm no help. oh well, good luck.
 
I looked on mcmaster's site as well as MSC industrial supply and VBX. nothing. 15mm shaft dia. bearings have a largest OD of 46mm, and bearings with a 47mm OD have a smallest ID of 17mm.


Of course you could use spacers. with a 20x47x14 bearing (http://www.mcmaster.com/#ball-and-roller-bearings/=b4ujr3), you could use a 15x20x15 sleeve bearing (http://www.mcmaster.com/#sleeve-bearings/=b4uj3s) to space it.


or something like that. Worst case scenario, find a good machine shop, give them the axle and bearing and have them make a spacer.


good luck man
 
Well... Heres what Im thinking:

bearing.jpg


Really crappy MS Paint version. Haha

Since I nned wheel spacers made anyhow, why not machine them with built in spacers for the bearings to ride on? Any thoughts as to why these wouldnt work?
 
if you get a 47X17 bearing & a 17mm axle, could you open up the forks 2mm?... this might be a terrible idea, i'm not sure, so if you see something wrong with it, educate me.
 
All balls lists the steering neck bearings of the 750k and the 750sc Nighthawk as the same size, when upon even naked eye comparison, it's easy to see the ID's are different. Just as a heads up, check your references when ordering bearings. Don't just take one sources word for the correct size. But I'm sure, as with just about everything we make a big deal about, there's probably a very simple solution to your problem.
 
Well, after spending a few days searching around. There is no easy out for this. Thats cool though. Heres what Im thinking...

1. Have a new axle machined. This is my least favorite option, seeing as it'll cost a good chunk of change.
2. Take the advice here, and get a 47 x 19 bearing, and a couple brass bushings to split the difference. The big problem with this, is that almost every bearing this size, is twice the width of the stock unit.
3. Go with the drawing I posted earlier. I need wheel spacers made anyhow, so why not? Only concern there is how thin the axle spacer would be. Seems to me that unless I went with something stronger/more wear resistant than mild steel, it would fail after a relativly short time.
4. Attempt to find a bushing that would split the difference between a stock cb bearing and the 47mm wheel size. My concern there is slippage. The wheel spacers would keep the bearing in place laterally, but if its not perfect it could allow the bearing to spin incorectly in the seat area.

Any thoughts on this?
 
It's not an issue because it takes no load. It's basically a sleeve.

That is exactly how many aftermarket wheel spacers look. To save weight, make a short sleeve with flange out of stainless and the rest of the bulk out of 2011/2024/6061 etc
 
XS1100 wheel bearing is a 6303 (17id x 47od x 14w).


You could use a 6204 bearing (20 x 47 x 14) or a 6005 (25 x 47 x 12). They are both common size (IE cheap). You'll just have to make up some sleeves to use with either (I'd probably go with the 6005 which requires a thicker sleeve - easier to machine).


You can look up bearings over here too:


http://www.bikebearingshop.co.uk/C10.htm


I did a bearing swap with sleeves on my GS/FZR hybrid front - I think I used a 20mm ID bearing on a 15mm axle. Anyway, the bearings were pretty cheap ;)
 
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