Hoping the people in this news-group can help:-
I have a pair of stepper motors with a gear wheel fitted to the drive shaft - the gear just seems to be push fitted on to the shaft (I cant see any spline or other attachment). The shaft is 5/32" (just a tad less than 4mm) The the motors have had it - so i want to replace them with something else. There seem to be a few motors about on ebay with apparently the right shaft size - will I simply be able to pull the gear off the old shaft and push it on the new? or will the act of removal spoil an "interference" fit?
An alternative is to get motors with a 5mm shaft and bore out the gear wheel somehow - how would I do this accurately enough?
Hoping someone here has done something like this before.
Steve