O-60072-1 | ((link))

The leaflet prescribes specific performance metrics that define the "feel" of the ball.

Covers pitch circle diameters of flanges from 55 mm to 1,080 mm (flange numbers 55 to 1080). Key Technical Specifications o-60072-1

A perfectly spherical ball ensures a true flight path. o-60072-1

According to O-60072-1, the ball must be constructed of specific materials to ensure safety and performance durability. o-60072-1

To test aerodynamic stability, balls are rolled down a sloped guide onto a flat surface.