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Unread 31-01-2011, 23:31
Andy A. Andy A. is offline
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Re: Window motor for arm

Quote:
Originally Posted by LLogan View Post
Adding onto this, the coupler accepts a 5/8 keyed shaft very nicely. You can also drill custom holes onto the coupler to attach a sprocket. Our team also drills and taps two channels for set screws onto the part where the coupler mates with the motor output.
To heap on some more detail, the 'output' shaft on the window motor doesn't rotate. That makes it pretty handy, as you can drill and tap it (carefully!) for a screw to retain the plastic coupler and whatever you attached to it to the motor. I think #10 thread works out pretty well.

Incidentally, that shaft is 8mm OD, which is close but not quite 5/16ths. Since it's advisable to avoid side loads on that shaft it's often the case that someone measures it with the intent of putting a bearing on it and finds out their brand new 5/16th ID bearing doesn't quite fit. Truly frustrating.