713
Behold The Hyundai Uni Wheel. Transportation May Never Be The Same
(cleantechnica.com)
This is a most excellent place for technology news and articles.
~~The gears are necessary to allow the wheel to move without having to move the input shaft.~~
Edit: sorry, I misunderstood your comment. I agree.
Somehow I thought you're saying the gears should be attached to the motor.