Read Machbase technical articles.

Bearing defects appear at characteristic fault frequencies before vibration amplitude rises. Many rotating-machine failures begin in the bearings. When a bearing race develops a flaw, each ball passing over it produces a brief impact at regular intervals. The number of impacts per second depends on the bearing geometry and rotational speed. This is called a characteristic fault frequency. In the early stages of a defect, vibration amplitude may remain almost unchanged, even t