quote:I find that not only did I not order enough balls (I ordered 20), but the armature shaft was slightly too short to allow the E-clip to slip on to the notch ().
If this cannot be addressed by adjusting the number of shim washers, then one of the armature bearings can be pushed a bit further into the motor housing. Usually the bearing closest to the worm, but I'd check clearances and the alignment between the armature head and the field laminations. If you set the bearing in a bit too far, then you can always just add an extra shim washer or two. (Any more than that, and I'd reset the bearings again)
Since you mentioned damaging the shaft bearings, I assume you replaced them.
As others have written, you can use super glue or locktite to keep the wheels in place. First you must carefully clean off any dirt / oil / grease, and be careful not to get any into the bearings. Use it sparingly.
quote:Instead of the individual ball beatings, I use part #681-121, which is 5 bearings inside a bearing race.
I believe the motors with loose balls have different shaft bearings. I never tried this. Do you keep the original shaft bearings or change them?
