rmx 250 rear axle problem

[tech128]

hey guys just in the process of changing the rear wheel bearings on my bike
everything was rusted and seized had to use heat and presses for every step of the way
to get everything apart .
my problem is the axle after removing it. it was covered in rust so i cleaned it up witha brush
fitted all the new bearings x3 seals etc and went to re press the axle in and found that you can push it by hand an has a bit of play in the inner races also that the brake mount that goes on the axle is spinning and loose too
my question is how and why would this b the bearings were so tight to get off had to grind and chissel them off
also i priced a new axle from colmans was 175 and 3 weeks
is iit possible to get a engineer to make one for cheaper basically a big bolt isnt it

[roadracingoldfart]

hey guys just in the process of changing the rear wheel bearings on my bike
everything was rusted and seized had to use heat and presses for every step of the way
to get everything apart .
my problem is the axle after removing it. it was covered in rust so i cleaned it up witha brush
fitted all the new bearings x3 seals etc and went to re press the axle in and found that you can push it by hand an has a bit of play in the inner races also that the brake mount that goes on the axle is spinning and loose too
my question is how and why would this b the bearings were so tight to get off had to grind and chissel them off
also i priced a new axle from colmans was 175 and 3 weeks
is iit possible to get a engineer to make one for cheaper basically a big bolt isnt it


Are you 100 % sure the new bearings are identical to the old ones ????

[Supertwin Don]

If the axle was so rusty that you had to press/butcher the old bearings off, you've probably stripped a few thou' off the axle already - "cleaning" it, another couple of thou' - non OEM bearings at the wrong end of the tolerances a couple of thou' too big - suddenly, eveything is a bit loose.
You could probably get a high tensile steel bolt and nut made up by an engineering firm - don't know what the price would be - but you could get it made to match the bearings (that's if all the bearings match!)

[tech128]

yeah tru if i were to get an axle made up do i give them the exact measurements of the inside diameter of the new bearing inner races
or slightly bigger i mean verry slightly for instance if say the axle is 20 mm and the bearing inner race is 20 is that a tight fit? cos i want to make sure that nothing is loose mainly the calliper mount which only relies on the tightness of the fit to stop the whole calliper arangement from sliding foward and back on bracking its a bt tlike an ancor point really