Sample data from Engineering Database — 375 reference tables, deterministic calculators, and Engineering AI. Sign up free
Friction Coefficients: Bronze screw
Bronze nut unspecified to Steel nut unspecified
Static and kinetic friction coefficients between material pairs under various surface conditions
| material 1 | material 2 condition | application | material 2 | mu kinetic max (dimensionless) | mu kinetic min (dimensionless) | source table ref | standard | surface condition |
|---|---|---|---|---|---|---|---|---|
| Bronze screw | Bronze nut unspecified | Threaded pair | Bronze nut | 0.06 | 0.04 | Shigley Table 8-5 | Shigley's MED | unspecified |
| Bronze screw | Cast iron nut unspecified | Threaded pair | Cast iron nut | 0.09 | 0.06 | Shigley Table 8-5 | Shigley's MED | unspecified |
| Bronze screw | Steel nut unspecified | Threaded pair | Steel nut | 0.12 | 0.08 | Shigley Table 8-5 | Shigley's MED | unspecified |
What else is in Engineering Database
Iron Engine ↗Engineering AI at ironengine.ai
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators