Skf bearing fault frequency chart

1. What is bearing defect frequency?
2. What is ball pass frequency?

What is bearing defect frequency?

Each bearing element has a characteristic defect frequency that depends on mechanical dimensions of the bearing. The product of multipliers with the shaft rotational speed gives the defect frequency of bearing running at given shaft speed [7].

What is ball pass frequency?

The ball pass frequency is the rate at which a defect in the inner or outer race comes into contact with a roller. Below are the four equations for calculating the fundamental frequencies. mechanical part, will generate natural frequencies while in operation; also known as fundamental defect frequency.