Banebots FIRST CIM motor and Banebots Wheels

Hello!!
I would like to use this Banebots motor (8mm shaft with 2mm keyway)
robotshop.com/eu/en/12v-5310 … motor.html

with a Banebots 4-7/8" diameter wheel like this one (3/8" mount with keyway)
robotshop.com/eu/en/ban-136-green-wheel.html

The problem is:
Are they really compatible? Can I use a 3/8" (= 9.5 mm) key mount wheel with an 8mm key shaft?

I don’t understand why even on the Banebots website there are NO wheels with 8mm mount and NO adapters for 8mm shafts. Why is that? How are people supposed to use their FIRST CIM motor?
Am I missing something?

If you are looking to create a drive system for a mobile robot, we strongly suggest choosing a gear motor rather than the CIM motor. A normal DC motor without gearing spins at very high RPM and produces very low torque. Gearing reduces the RPM and increases the torque. The wheel’s inner diameter is 3/8" (0.375"), whereas the motor’s output shaft is 0.313", so it would be a somewhat loose fit at best. You would have to secure it in place using a key and two lock collars. Once again, we strongly suggest using gearing for the CIM, except in the case where you might be using it as a ball launcher etc):
Ex, the P80 series is made for the CIM: robotshop.com/eu/en/catalogs … t&dir=desc
This has a 0.5" diameter shaft for use with larger wheels.

Thank you very much for the help!!
I managed to find another wheel on your site. (actobotics wheel 6" and a compatible 8mm hub).

I have one last problem: how can I connect banebots dc motor
robotshop.com/eu/en/12v-5310 … motor.html
to electric current?

Can I connect it to 220v AC (“wall current”) like my laptop (using a transformer)?
Or is there a battery that can last 45min-1h using this motor as a ball luncher?

Can you please provide links to some products in your store?
I just want to power the motor in the simplest way possible =)

Thanks again

The motor is DC voltage only (not AC)

The battery you select needs to be able to discharge at whatever current the motor needs (plan for around 30A).
We suggest an 11.1V LiPo battery of at least 10 to 20Ah (amp hours) capable of discharging at at least 2C (5C preferred).
If weight is not an issue, as 12V lead acid battery would do fine and save you a lot of money (like a car battery).

This is a fairly large and expensive battery, and unfortunately we don’t carry such a product at this time, but you can likely find it online.

I just want to power the motor in the simplest way possible =)
Connecting the motor leads directly to the battery is the cheapest way.
HOWEVER, note that the CIM is a very high current motor and touching the exposed wires with your hands is incredibly dangerous.
Take all necessary precautions! We suggest finding a high current switch to use so you can stop the motor and adding a 20A fuse.