TourTour Specific wear rate nominal line contact
Input r and b Input b and h
 r 10-3 m h 10-6 m
 b 10-3 m b 10-3 m
 L 10-3 m L 10-3 m
 F N F N
 s m s m
 
 V 10-12 m3 V 10-12 m3
 k 10-15 m2/N k 10-15 m2/N
 
 Symbols (reference )
 r ring radius [m]
 b half scar width [m]
 h scar depth [m]
 L scar length [m]
 F Load [N]
 s slide distance (= v·t = π·d·n·t) [m]
 V wear volume [m3]
 k specific wear rate (= V/(F·s) [m2/N]

 Remark: Best value for the specific wear rate can be computed from a 3D surface
 topography scan or a 2D contour track using a surface stylometer.
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