A small problem of/with rolling resistance [poor design by me]
In early trials I found some rolling resistance, upon checking I found that
the oil seal on the stubb axles had cut a relief in the ID of the seal where it
runs. So carefully I cut /eased the seal out and went back out on the test track
there was some improvement, but still some resistance so had to do some
more testing.
If as with a bike front wheel when held off the ground, and given a spin
it seems to roll forever and i would have to class that as 9.5/10
As in the photo you can see where the oil seal has been running, on a
metal spacer that is attached to form the wheel track width, it is fixed to
the axle with a compression pin. However the OD has never been trued
in a lathe.
So I summarize that by running it in a lathe and trimming/truing it up a
micky whisker i should increase the rolling performance to about 85-90o/o
or make it an 8.5-9.5 effective. I have had a go with a file on the one in the
background, but a lathe would give best results