Electric Motor Rotor Balancing

The impact of shop balance technique is most important when the rotor is relatively flexible and or long as is common with most turbomachinery.

Electric motor rotor balancing.

Motor rotor balancing can be a confusing topic leading to sometimes heated conversation especially in motor shops where cultures have evolved so differently over the years. Here are some easy troubleshooting methods to determine the cause of unbalance in the motor. Rotor balancing view motor assembly. Electric motor balancing is critical for extending the life of electric motors used in a wide range of commercial and industrial applications an unbalanced motor runs the risk of damaging or even destroying the motor shaft and bearings causing added system expense and downtime that can affect your operations and or production.

All rotors must be balanced whether new from the factory oem or recently repaired. We have cast millions of rotors and have worked with. Many shop or machine tools have big motors and many big motors vibrate. The reader is directed to the paper s balance terminology section for a summary of terms used in this paper.

Smooth running motors last longer make less noise and in the case of saws or other shop tools make better quality. But the methods of balancing vary as does the quality of the work. Basic methods of balancing rotor can be balanced by aligning the rotor mass with the bearing centers norfield 2006. To improve the balance condition of most high speed flexible rotors the following.

Electric motors are almost always well balanced when they leave the motor manufacturer. Our products are proudly manufactured in the united states of america. Mainly used in production line balancing such as electric motor rotor manufacture and the like. Using the standard the use of the standard involves the following steps.

But occasionally motor unbalance problems are picked up with vibration monitoring tools such as the oneprod hawk. Dynamic motor balancing with sugru and an iphone. We offer a flexible range of balancers to accommodate a variety of rotor sizes as well as the different levels of automation required to match production volume. In some cases this is a good thing but usually it is not.

An electric motor s rotor like any rotating mass cannot become out. Select a balance quality grade g number from table 1 based on rotor type. Balancing solutions for small armatures and electric motors hofmann is a leading supplier of balancing systems for the small armature and electric motor industry.