Wheel issues
4 posters
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Wheel issues
Hi there
Long time lurker so thanks to everyone who posts. It's been a great reference source so far. I had planned to start a thread when I had a completed front end.
However last weekend when trial fitting a wheel to the axle I hit a snag....
As you can see, the retaining collar doesn't line up. I did try it the other way round in case I'd been a numpty but still no good.
However if I try without the rear bearing, it fits.
So.... either my bearings are not fitting correctly or the retaining collar is the wrong size.
I have the same issue with both hubs and having tried all sorts of ways of pressing in the bearings, am beginning to think it must be the collars that are wrong.
I am minded to borrow my best mates lathe and turn them down to the desired thickness. Before I take any action I just wanted to pick people's brains to see if this is a common occurrence or if there is a special way of seating the bearings.
Given that thus far everything has fitted together nicely, I would be shocked for STWs kit to be out by so much. This leads me to think I must be doing something wrong.
Thanks in advance
Rich
Long time lurker so thanks to everyone who posts. It's been a great reference source so far. I had planned to start a thread when I had a completed front end.
However last weekend when trial fitting a wheel to the axle I hit a snag....
As you can see, the retaining collar doesn't line up. I did try it the other way round in case I'd been a numpty but still no good.
However if I try without the rear bearing, it fits.
So.... either my bearings are not fitting correctly or the retaining collar is the wrong size.
I have the same issue with both hubs and having tried all sorts of ways of pressing in the bearings, am beginning to think it must be the collars that are wrong.
I am minded to borrow my best mates lathe and turn them down to the desired thickness. Before I take any action I just wanted to pick people's brains to see if this is a common occurrence or if there is a special way of seating the bearings.
Given that thus far everything has fitted together nicely, I would be shocked for STWs kit to be out by so much. This leads me to think I must be doing something wrong.
Thanks in advance
Rich
BullyBurrell- Number of posts : 6
Location : Worcestershire
Registration date : 2019-08-25
Re: Wheel issues
Hi Rich
If you are on the latest batch of axle, the retaining collars were made to fit the axle on one end (so if you put the wrong collar on then it one end then it won't fit). Have you tried both collars on that end?
Many thanks
Will@STW
If you are on the latest batch of axle, the retaining collars were made to fit the axle on one end (so if you put the wrong collar on then it one end then it won't fit). Have you tried both collars on that end?
Many thanks
Will@STW
Will@STW- Number of posts : 196
Age : 26
Location : Daventry
Registration date : 2019-01-29
Re: Wheel issues
Thanks Will for the quick reply. Sadly trying both hubs on each side of the axle with both retaining collars they still don't fit.
I've had a play with some measuring and now firmly believe the collars are the wrong size....
You'll see from my rough drawing that comparing the measurements of the inside bearing lip thickness, the length of the hub, the outer bearing thickness and the wheel retaining collar, the total dimensions are all but there (barring 0.5mm).
This is borne out as both collars fit when offering up the wheels with no outer cover.
When the outer cover is added, the collar is out by circa 3.67mm. This adds up to 3.87mm per my diagram and I suspect the difference of 0.2mm is just cumulative errors on my measurements.
Hence either I have the wrong collars or the axle ends are not long enough.
The collars seem to be the obvious issue as if they are turned down by just under 4mm, everything will line up nicely.
Before turning them down I just wanted to be sure (which I am now).
So unless you have some collars on the shelf that are say 16mm thick, I'll customise the ones I have.
Rich
Ps - both collars are actually identical. The holes seem to be in the same place bar very minor differences.
I've had a play with some measuring and now firmly believe the collars are the wrong size....
You'll see from my rough drawing that comparing the measurements of the inside bearing lip thickness, the length of the hub, the outer bearing thickness and the wheel retaining collar, the total dimensions are all but there (barring 0.5mm).
This is borne out as both collars fit when offering up the wheels with no outer cover.
When the outer cover is added, the collar is out by circa 3.67mm. This adds up to 3.87mm per my diagram and I suspect the difference of 0.2mm is just cumulative errors on my measurements.
Hence either I have the wrong collars or the axle ends are not long enough.
The collars seem to be the obvious issue as if they are turned down by just under 4mm, everything will line up nicely.
Before turning them down I just wanted to be sure (which I am now).
So unless you have some collars on the shelf that are say 16mm thick, I'll customise the ones I have.
Rich
Ps - both collars are actually identical. The holes seem to be in the same place bar very minor differences.
BullyBurrell- Number of posts : 6
Location : Worcestershire
Registration date : 2019-08-25
Re: Wheel issues
Hi Rich
Before you go ahead and machine the collars, we need to be certain that the problem isn't a result of a problem with the wheels. When the wheel is fully assembled the distance from face of the outside bearing to the face of the inside bearing should be 71mm, if it is more then I would check that your bearings are going all the way in to the hub as they should. If you do get that measurement, then I would just double check that the inside bush has a radius matching the radius on the axle. If all this is correct then you can safely assume that the problem is either the length of the axle or the size of the collars.
Many thanks
Will
Before you go ahead and machine the collars, we need to be certain that the problem isn't a result of a problem with the wheels. When the wheel is fully assembled the distance from face of the outside bearing to the face of the inside bearing should be 71mm, if it is more then I would check that your bearings are going all the way in to the hub as they should. If you do get that measurement, then I would just double check that the inside bush has a radius matching the radius on the axle. If all this is correct then you can safely assume that the problem is either the length of the axle or the size of the collars.
Many thanks
Will
Will@STW- Number of posts : 196
Age : 26
Location : Daventry
Registration date : 2019-01-29
Re: Wheel issues
Cheers Will
I will have a play this evening and see what's what.
Rich
I will have a play this evening and see what's what.
Rich
BullyBurrell- Number of posts : 6
Location : Worcestershire
Registration date : 2019-08-25
Re: Wheel issues
it does not look like your bearing is in the correct place.
this pic was taken from lynn's thread and the bearing looks to be deeper in the hub..
https://traction.forumotion.com/t623-lynn-robinson-showman-scenic
this pic was taken from lynn's thread and the bearing looks to be deeper in the hub..
https://traction.forumotion.com/t623-lynn-robinson-showman-scenic
BurrellSimplicity- Number of posts : 74
Location : Scotland
Registration date : 2019-04-29
BullyBurrell- Number of posts : 6
Location : Worcestershire
Registration date : 2019-08-25
BullyBurrell- Number of posts : 6
Location : Worcestershire
Registration date : 2019-08-25
Re: Wheel issues
Hi
Just noticed from the picture of your wheel on the axle. You have the spokes on the wrong side of the T ring. All spokes should be on the inside of the wheel when mounted.
Just noticed from the picture of your wheel on the axle. You have the spokes on the wrong side of the T ring. All spokes should be on the inside of the wheel when mounted.
lynnr- Number of posts : 3242
Age : 55
Location : Highland, 4inch showman
Registration date : 2010-08-06
Re: Wheel issues
Thanks Lynn for your comment.
I was hoping no one would notice.....
I realised after bolting up the second wheel and comparing it to the drawings and the first wheel. However I just wanted to see it together.
I made a note for myself to reverse when dis assembling them before epoxying the spokes in as I just want to give the spokes one final key with the flap wheel. I plan on painting once the epoxy has cured.
I am sure this won't be the last time I'm in need of assistance from people on here.
Rich
I was hoping no one would notice.....
I realised after bolting up the second wheel and comparing it to the drawings and the first wheel. However I just wanted to see it together.
I made a note for myself to reverse when dis assembling them before epoxying the spokes in as I just want to give the spokes one final key with the flap wheel. I plan on painting once the epoxy has cured.
I am sure this won't be the last time I'm in need of assistance from people on here.
Rich
BullyBurrell- Number of posts : 6
Location : Worcestershire
Registration date : 2019-08-25
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