Balancing machines and systems dynamically measure and/or correct machine or component balance (load balancing). Dynamic balancing distributes the weight (mass) of a rotating body evenly around the axis of rotation, reducing vibration, improving performance and accuracy, and reducing wear. Driveshaft balancing is an important part of noise, vibration, and harshness (NVH) analysis in vehicles. A portable balancing machine can save time and money by allowing engine balancing in the field. An automatic balancing system can record vibration data, calculate a balance solution, and determine the specific rebalancing steps, after only one engine run. The system displays a diagram of the engine balance flange, and shows the sizes, part numbers, and hole locations of weights to be installed. Balancing machines and systems measure the amount of unbalance and its angular position in selected correction planes.

