What is the ISO 1940 Standard?

The ISO 1940 standard is a globally recognized reference used to define the permissible unbalance levels for rotating parts. This standard establishes different quality grades (G-classes) based on the part's rotational speed and application. For example, a G2.5 grade is used for high-precision shafts and motor rotors, while a G6.3 grade is suitable for lower-speed and less-sensitive parts. This classification provides a clear guideline for engineers and manufacturers on how well a part needs to be balanced. It ensures that critical components operate safely and efficiently, while avoiding unnecessary costs and time spent on achieving excessively high precision.

ISO 1940 is an essential guide for ensuring quality and consistency in balancing processes. Choosing the correct G-class for a part's intended use extends bearing life, reduces vibration, and improves a machine's overall performance. At MBS Balans Sanayi, we design all our industrial balancing machines and services to comply with these international standards. Working with our customers, we determine the most appropriate ISO 1940 quality level for the specific needs of their parts, providing solutions that are both reliable and cost-effective.