Over the years we have been faced with the question that almost every balancing machine available raises. “How fast is the driveshaft balanced for?” Most balancing machines are very efficient in doing the job that they are designed for, as long as they are calibrated and working properly.

Instead of actual shaft speed, they rely on sensors that detect the “weight centerline” of the part being spun. This means that when the shaft is spinning, the machine is seeing how far out of the center the weight is. Then goes on to indicate what amount of weight is needed to bring it within a certain tolerance.

That being said, when the shaft is being spun at the actual speed that it will be running at, it presents more information to assimilate and therefore gives the ability to accurately correct it. Another major advantage is that a high-speed balancer will also be able to analyze parameters that the slow-speed machine cannot. Such as u-joint tolerance, tube flex, harmonic resonance, slip yoke instability, and more.

With this new machine, we can spin a 17lb shaft to actual speeds of over 9000 RPM. Most driveshaft balancers only spin from 400-3000 RPM (most average about 1000 RPM).