| Matière | non lubrifiée | lubrifiée | 
| Acier - Acier | 0.8 | 0.16 | 
| Acier - Fonte | 0.4 | 0.21 | 
| Acier - Laiton | 0.35 | 0.19 | 
| Acier - Laiton | 0.13 | 0.16 | 
| Fonte - Fonte | 1 | 0.15 - 0.20 | 
| Fonte - Bronze | 0.25 | 0.08 | 
| Bronze - Bronze | 0.25 | 0.10 | 
| Aluminium - Aluminium | 1.35 | 0.30 | 
| Cuivre - Cuivre | 1 | 0.08 | 
| Acier - Plexiglas | 0.4 - 0.5 | 0.4 - 0.5 | 
| Plexiglas - Plexiglas | 0.8 | 0.8 |