Need some help,
I am in the progress of building a robot which will use 2 lawn mower wheels on a single shaft. I am using this method due to the final weight of the robot (~100 lbs) and the fact that I was concerned with radial torque I would have if I tried to drive the wheels directly with a coupler or such.
Each wheel is to be driven separately by their own drive motors. I am thinking of using a large metal gear, maybe from a bicycle, and chain driven, but have not been able to figure a way to mount the gear to the wheel. Any help is greatly appreciated. Also looking for sources for large metal gears say 4-5" in diameter.