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All have developed play during/after built...
if the bearing bore is overmachined you can press the bearings in with some retaining compound which will hold them in the shell.
if the spacing of the bearings is not correct in regards to the axle , you can most probably take the play out using microshims
There is quite a few hubs suffering from option 1 like some novatecs and the like
Novatec track hub = £30 or so, aren't Macks about 5 times that?
Sloppy machining on a mass produced budget hub is one thing...
Built a few pairs of these for customer's in the shop. Luckily he supplied them himself, so i don't have to deal with the aftermath. All have developed play during/after built.
You have couple of options to combat this.
if the bearing bore is overmachined you can press the bearings in with some retaining compound which will hold them in the shell.
if the spacing of the bearings is not correct in regards to the axle , you can most probably take the play out using microshims
There is quite a few hubs suffering from option 1 like some novatecs and the like
Few suffer from option 2 , like most of the mavic Tra comp non adjustable hubs on majority of their higher end wheels. Less money spent on machining, tolerances and QC for Mavic and play in the hubs for you.