I am trying to make a bike on a budget and would be grateful if someone can help me with a question about cones and all bearing sizes please so I can save a set of wheels.
The wheels have no name hubs and a cup and cone set-up. Solid 9.5mm axle. I've taken the rear axle out and the cups are fine. The ball bearings are 1/4 inch size (6.3mm diametre) and there are two sets of nine in the rear hub.
One of the cones is a bit rough and I'd like to replace it but I can't find any other sizes except 3/8 and 5/16.
As there must be literally millions of these hubs with 1/4 inch balls out there, it is a bit strange I can't find the associated cones.
Alternatively can I simply replace the axle etc with a generic part like this one and assume it will work with the cups?
Can anyone suggest a solution? Thanks in advance.