I'm trying to retrofit a pull cart with electric motor. So, one wheel will have an electric hub motor and it is connected to a rotating shaft to the other non-powered wheel. The driveshaft is connected to the undercarriage of the cart via pillow block bearing.
As the powered wheel rotates, the other wheel follows and rotates, that's the idea.
Steering should be done by the user with their hands/arms, not by the motors.
I wonder if the cart will slowly steer unwantedly to the left and right, since only one motor is attached to only one wheel?
P/S: I can't have two motors at two wheels because if both are not completely in sync (which is hard to achieve), the cart will steer to the left or right ny itself (imagine how a a tank steers). I will also have a switch to turn on/off the motor and PAS sensor. I will figure out the speed control issue in another post.