Generator armarture retaining ring groove

[Drive Shaft Dave]

I am installing my armature retainer ring into the groove but it wont seat very well, It seems to me the groove is very shallow , I have sqeezed it together slightly then pushed it on it seems like it take but takes very little pressure on the end of the armature then it pops off . Any ideas?

[spike]

use a snap ring two if you need to fill the gap

[Kurt in NJ]

When I had the armature in the lathe to turn the commutator I would also touch up the groove with a jewlers file to clean up any burrs, but it isn't meant to be the only thing locating the bearing, the bearing should fit tighter than a hand push on the shaft ---if it is slightly loose but no play locktite sleeve and bearing retainer works, if it is rattling loose it can be knurled.

[Drive Shaft Dave]

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Thanks fellas I will take this info under advisement.