Pin-on-disc tribometers are used by the academia to study friction and wear of disc brake materials. It has been debated if a simplified set-up could reproduce the friction and wear behaviour of the disc brake assembly. The aim of this paper is to investigate and discuss this topic by comparing the friction surfaces with diverse microscopy techniques. Also, coefficients of friction, wear, and collected airborne wear particles are compared. Although the tests are based on different testing procedures (tribometers - drag test and dyno-bench test – single station), the results show that tribometers provide information related to the friction-wear performance, character of friction surfaces, and character of wear particles, which mirror the behaviour of the samples during dyno-bench tests

Metinöz, Ibrahim*; 1Matějka, Vlastimil; Alemani, Mattia; Perricone ,GuidoBrembo S.p.a, Italy;Wahlström, Jens; Department of Machine Design, KTH Royal Institute of Technology, Sweden;