PCS - Micro Pitting Rig Machine (MPR) Brochure

The MPR is a computer controlled three-contact disc instrument in which there are three ‘counterface’ rings of equal diameter positioned apart with a smaller diameter roller located in the middle and in contact with all the rings. This arrangement allows the test roller to be subjected to a large number of rolling contact cycles in a short period of time and hence significantly reduces testing time. At a typical entrainment speed of 3.5m/s, the central test roller will experience approximately one million contact cycles per hour.