It is defined as the perpendicular distance between the follower's axis of motion and the center of the cam. 從凸輪的轉動中心到直動推桿的導路之間的垂直距離。
But some caution is needed in choosing the center of rotation to be employed in evaluating the torques and calculating the motion. 但是，在選擇用來求力矩和計算運動的轉動中心時，需要注意幾個問題。
The Center of rotation located in trifurcation area. 牙旋轉中心位於三牙根分叉下方附近。
Based on the concept of persistence of vision, the Phantom's single rotor blade has a center of rotation outside of the UAVs' physical fuselage. 為了便於持續觀察，幻影的單個旋翼的刀片有一個旋轉中心，這個旋轉中心位於機身外側。
