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View Full Version : correct Set Screw Hubs for AME-218 gear motor



scowby
07-29-2009, 12:47 PM
I have an AME-218 gear motor with a .39" shaft that I am trying to find set screw hubs, like the ones available at servocity.com (http://servocity.com/html/set_screw_hubs.html), except I cannot find ones big enough to fit this shaft.

Any recommends on other vendors or another place to find these things?

The driveshaft has like a little nick cut out, making a "D-like" shape, the only thing I can think of is to use a set-screw-hub in order to mount something else to it (I want to make this drive a gear, eventually). Any other suggesitons?

Thanks!

CogswellCogs
07-29-2009, 03:20 PM
I hate D-shafts ! You'd think someone would have a standard D shaped broach to make our lives easier .... buuuuut noooooooo. I've broached standard keyways in hubs and sprockets and it isn't that difficult. D shaped broaching is a differnt story.

It might be worth an $8 experiment to pick up a 3/8" hub from ServoCity and bore it out. MSC (www.mscdirect.com (http://www.mscdirect.com)) has every imaginable size of drill bit if you can't find something appropriate in your local hardware store. Do you have access to a drill press or a small lathe ? If not and you only need a few of those things, contact me off line and I would be happy to do it for you.

scowby
07-29-2009, 03:32 PM
Yea, I have access to a drill press - I guess that's one option, to bore out the hole. Preferably I'd be able to find something stock, of course.

Nothing bigger than .375" out there?? Wow, I'm off by 0.015" - never imagined I'd deal with tolerances like this! :)

CogswellCogs
07-29-2009, 03:59 PM
You can always get a gear with a set screw or Fairloc hub and a 10mm bore. Metirc gears usually have a 20 degree pressure angle. Be aware of that when you look for gears to mesh with it.

http://sdp-si.com/eStore/Direct.asp?GroupID=336