Distance between Center of Gear and Pinion is the length between the center of the gear and pinion in a dynamometer, used to measure torque and rotational speed. And is denoted by agear. Distance between Center of Gear and Pinion is usually measured using the Meter for Length. Note that the value of Distance between Center of Gear and Pinion is always positive. Typically, the value of Distance between Center of Gear and Pinion is greater than 0.