Tribological Collapse in Nylon 66–Brass Sliding
Persistence Regime: Tribological
Assumption under test
Nylon 66 bearings sliding against brass retain wear resistance and dimensional tolerance indefinitely under dry conditions.
Irreversible physical mechanism
Progressive accumulation of fine wear debris produces surface embrittlement and triggers an abrupt transition to a catastrophic high-wear regime.
Why persistence timescales are required
Initial wear rates appear stable; the irreversible transition only emerges after prolonged sliding over months to years.
MVP persistence experiment
- Reciprocating nylon 66 slab against brass pin
- Moderate constant normal load
- Dry sliding, ambient environment
- Duration: 1–3 years
Binary kill condition
Sudden increase in wear scar depth or brass pin mass loss exceeding 10%.
Estimated probability
0.65–0.8