O-Guruma is a big ippon scoring judo throw. Use a spin entry to create massive momentum. Watch the animation to see how to use your leg to wheel uke over:
How to throw with O-Guruma
First step to the side and wide of your partner with your support foot.
Lift your attack leg and spin in a circle on your support foot.
Bring your attack leg under uke’s stomach, and wheel uke over your leg.