Globe motor mounting

[ChrisH]

Originally Posted by DAN THE MAN

I am looking for a strong reliable way to attach a globe motor to a small gear. In previous years we have bored out the gear to the diameter of the globe motor shaft and then ramed set screwed onto the flats of the motor shaft. This method worked but it wasn t very reliable and constantly came loose. I was also thinking of somehow boring out the gear to the same shape as the globe motor shaft but i couldn t find a good way of doing this with our limited machine shop capability. If anyone has any info about how to attach gears to the globe please let me know.

Thanks

Dan the Man

The tool you are looking for is called a broach. A broach with the appropriate width will give the shape hole you need. I don't think broaches are terribly expensive, though I must admit our machine shop has never made us pay for one.

Either that or find an EDM shop nearby. It is a small enough job you might get it done for free if you ask nicely and the machine is idle at the moment.