CIM Motor Direct Drive or Supporting Axle

[asid61]

Originally Posted by Monochron

This is kind of unrelated to the other conversations here, but I thought I would offer my own suggestion against using this type of set screw hub. I have had to deal with getting these to fit just right and keeping the setscrew from backing out and it is a pain. Especially with your CIM at 5000+ RPM I think this is going to be a headache for you.

I would recommend using this coupler on your CIM shaft to make it so you can use any wheel with a Hex bore. Then you could use tons of different wheels as long as they have that Hex hole in the middle. You would also be able to use this hub to connect to wheels without the hex hole in the midle.

It's totally up to you (and I know you already sunk money into that hub), but I just hate trying to use set screw hubs on a keyed shaft.

We did set screws on our 2012 shooter robot, and the way the set screws go onto the keyed area makes it so that the wheels rotate with the shaft. We also have a 2-sprocket reduction before the output wheels, which are attache with set screws. I think it really depends on how hard you go on it, and what tip the set screw has.