# Number of rolling elements

> [HTML Version](number_of_rolling_elements.html)

The number of rolling elements has to be specified. A minimum number is three; the maximum number depends on the bearing pitch diameter. A warning is shown if the rolling elements overlap, the distance between rolling elements is available in the results overview and report.

For cross-roller bearings, this is the number of rollers for one row.

Using the (./images/all_img3.png)-button the number of rolling elements can be calculated automatically based on a maximum fill angle and a minimum distance between the rolling elements. For deep groove ball bearings, the fill angle would be 180-200°, the minimum distance can be based on requirements for the cage.

(./images/all_img236.png)

This option is mainly thought to allow the variation of the rolling element diameter in the parameter variation with an automatic setting of the number of rolling elements.