Sprocket wheel slipping on axle

Hi all,

One of my rover’s sprocket wheels has started slipping on its axle; the hex-shaped hole in the wheel has worn and the axle doesn’t grip it any more.

Has anyone else seen this? I guess glue of some kind is a feasible fix?

Many thanks,
alec

Looks like the plastic inside the sprocket is chewed up for some reason - the axle just doesn’t grip. Time to get the glue out!

Many thanks,
alec

Check to see that it’s pushed in firmly. If so, a bit of glue should take care of it. Have not heard of this issue before.