Specific wear rate (nominal line contact)
Specific wear rate for a nominal line-contact wear scar, derived from the worn circular-segment cross-section (counter-body radius and scar half-width) times the contact length, normal load and sliding distance.

Worn volume, V4.5665956759847854e-24 mm³
Specific wear rate, k8.456658659231085e-31 mm³/N·m
Method & references
- Specific wear rate k = V / (F · s) from a nominal line-contact wear test.
- Worn volume from the circular-segment scar cross-section, assumed to follow the counter-body radius.
The computation is a literal port of the original client-side JavaScript from /calculators/e4_3.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.