The O-guruma (Large wheel) Waza consists of a leg sweep that throws the opponent with a rotational motion.
Tori (Player executing technique) grasps Uke (Player receiving opponent’s attack) sleeve armpit with his Hiki-te (Pulling hand), and the side of Uke collar with his Tsurite (Lifting hand), then pulls Uke while turning sideways, destabilizing him toward the front corner.
With Uke destabilized, Tori swings his Tsurite (Lifting hand) side leg around from the front so that it strikes Uke weight supporting leg between the thigh and the abdomen. Using both his pulling and Tsurite (Lifting hand), Tori then destabilizes Uke even further toward the front corner.
Tori then uses a body twisting motion to throw Uke in a rotational motion toward the front.
This Waza closely resembles the Harai-goshi (Hip sweep) and the Ashi-guruma (Leg wheel).
It differs from the Harai-goshi (Hip sweep) mainly in that there is more space between Tori and Uke upper body, the swept leg is not swung upward, and the swept leg toes are off the floor.
This Waza differs from the Ashi-guruma (Leg wheel) in that the height of the extended leg is lower.