[artdutra04]

Originally Posted by magnets

I would try to support the shaft on the other side. The versa planetary manual says you don't need to, but they are talking about sprockets, not wheels.

I would also try to have more reduction if possible.

The banebots rs775 free speed is 19500 rpm.
Lets say that you have the motor spinning at 15000 rpm. With a 50:1 reduction, that's 300 rpm for the wheels. The wheel circumference is about 7.9", so that gives you a max of 2370 feet per minute of travel, or 40 feet per second, which is too much.

If I were you, I would go for a larger reduction in the versa planetary (maybe 100:1) and I wouldn't direct drive. Then, you could do a 2:1 reduction with chain, and you could drive both the front and back wheels.

The RS775 spins at 19500 rpm free speed at 18v. At 12v, the free speed is approximately 13000 rpm.