nut repair

[pondy]

have a large axle nut from a quad bike, the threads on the axle got ripped off, so a new thread was cut, the thread inside the nut is now the incorrect size, is it ok to welder a layer inside the nut, then drill and re tap a new thread, the inside of the nut is between 35-40mm and will be req to torque down to 100nm, ok repair or just a bodge?
have some a simular thing for a brake caliper mount, the thread was damaged so i welded over the hole then re drilled and tapped, worked fine but this is only a small item

 

[mart]

I am guessing that you are unable to get a nut that matches the new thread on the axle?

 

[pondy]

i can get one custom made from a machine shop, but its more expencive, so these are my two options

 

[Justme]

Will the reduced size of the threaded axle still hold the loads?

Can you not fit a helicoil thread repair to the nut?

 

[Bsmith]

Welds are usually tougher than the parent metal and threading seems to chew the weld rather than cut. Better to get a smaller nut and drill then thread if you have a suitable tap.

 

[scarecrow]

for every die size there is a tap size what is the die size