Confused by Burley D'lite hubs

I recently adjusted & lubed the wheel hubs on my trailer. I thought they would be standard road, 36
hole, 100mm spacing front hubs, but they are not. The trailer was manufactured in July, 2000 and the
hubs have the word "Mount" on them. The spacing is 99mm. Inside there are seven, 3/16" ball bearings
per side. The balls are held in a cage, like headset bearings.

In the future, I will probably want to build a set of wheels for the trailer. I prefer using 105 or
Ultegra hubs, but their 100mm spacing is a really tight fit on the trailer. Any ideas?

Tim

 

> I recently adjusted & lubed the wheel hubs on my trailer. I thought they would be standard road,
> 36 hole, 100mm spacing front hubs, but they are not. The trailer was manufactured in July, 2000
> and the hubs have the word "Mount" on them. The spacing is 99mm. Inside there are seven, 3/16"
> ball bearings per side. The balls are held in a cage, like headset bearings.
>
> In the future, I will probably want to build a set of wheels for the trailer. I prefer using 105
> or Ultegra hubs, but their 100mm spacing is a really tight fit on the trailer. Any ideas?
>
> Tim

One millimeter difference isn't much. If I recall correctly, the "dropouts" used to hold the wheels
to the frame of the trailer are made of aluminum, so a few strokes with a file will open the
clearance enough to easily fit 100mm hubs. The dropouts can be easily unbolted from the frame tubes
to make it easier to do a workmanlike job.

You should be aware that friction losses for any well-adjusted hub are very low compared to other
sources, and that the differences (in friction) between cheap and nice hubs are vanishingly small. I
am assuming that is the reason you are considering replacing the hubs, so correct me if I am wrong,
but I wouldn't bother for the trailer.

Ted Bennett

 

"TKC" <[email protected]> wrote in message news:[email protected]...
> I recently adjusted & lubed the wheel hubs on my trailer. I thought they would be standard road,
> 36 hole, 100mm spacing front hubs, but they are
not.
> The trailer was manufactured in July, 2000 and the hubs have the word "Mount" on them. The spacing
> is 99mm. Inside there are seven, 3/16" ball bearings per side. The balls are held in a cage, like
> headset bearings.
>
> In the future, I will probably want to build a set of wheels for the trailer. I prefer using 105
> or Ultegra hubs, but their 100mm spacing is a really tight fit on the trailer. Any ideas?

Change the locknuts? Remove the washer between cone and locknut? Spread the trailer ends from 99mm
to 100mm? Shouldn't be hard to find 0.5mm per side.
--
Andrew Muzi http://www.yellowjersey.org Open every day since 1 April 1971