What measurement system is primarily used for anti-friction bearing dimensions?

The measurement system primarily used for anti-friction bearing dimensions is the Metric system. This system is favored due to its widespread adoption in engineering and manufacturing industries, particularly in regions that adhere to international standards.

Anti-friction bearings are designed to facilitate smooth movement and reduce friction in mechanical systems. The dimensions of these bearings, such as inner and outer diameters, width, and tolerances, are commonly expressed in millimeters. The metric system provides a clear, consistent framework that allows for precise engineering specifications, which is critical for ensuring the proper fit and function of bearings in various applications.

While other measurement systems like Imperial and Customary are used in certain regions, particularly where traditional practices prevail, metric dimensions are more prevalent in global industry standards. This ensures compatibility and efficiency, especially when components are sourced from different manufacturers around the world.