Would it be possible to make a custom shaft to lock two Revolt motors together? Then add extra bearing next to the sprocket. Should this kind of setup be controlled with one or two controllers? If controlled with one, how should it be wired?
Edit: found the answer from another topic
Jeremy Harris wrote:
Provided that both motors are mechanically kept in sync, with the rotors in identical positions relative to their stators, then yes, it will work. The problems are:
1. Getting the rotors aligned. This needs to be better than just doing it mechanically, as there's no assurance with a lot of motors that the stators are at the same angle relative to the mounting plate. One way to do it is to put DC at a limited current (may be a few amps) through the same winding on each stator, with the motors not mechanically connected. The rotors will lock at an angular position that is where you want to connect them together.
2. The other problem is that the motor apparent winding resistance will be halved, as far as the controller is concerned, so the controller will need to be able to deliver enough current. The good news is that the motor apparent inductance will double, giving the controller an easier time.
You only need Halls on one motor, as you've already worked out. I'm not sure whether a chain will be accurate enough to make the two motors run smoothly, unless it's pretty tight, when it might well have a high wear rate and be noisy. A toothed belt might be better, or better still try and mechanically lock the shafts together as one.