Surface condition | Sliding speed, [mm/min] | Coefficient of friction | |||
10.4 kN | 16.25 kN | 32.5 kN | 48.75 kN | ||
Grinded | 60 | 0.143 ± 0.002 | 0.108 ± 0.002 | 0.099 ± 0.001 | 0.107 ± 0.002 |
150 | 0.108 ± 0.003 | 0.122 ± 0.001 | 0.092 ± 0.001 | 0.097 ± 0.002 | |
240 | 0.104 ± 0.002 | 0.104 ± 0.003 | 0.088 ± 0.002 | 0.098 ± 0.0006 | |
Polished | 60 | 0.084 ± 0.002 | 0.081 ± 0.0008 | 0.069 ± 0.001 | 0.073 ± 0.001 |
150 | 0.085 ± 0.002 | 0.082 ± 0.002 | 0.070 ± 0.001 | 0.079 ± 0.0009 | |
240 | 0.099 ± 0.0004 | 0.084 ± 0.0006 | 0.074 ± 0.0008 | 0.078 ± 0.001 | |
Nitrided | 60 | 0.136 ± 0.009 | 0.125 ± 0.008 | 0.107 ± 0.004 | 0.106 ± 0.004 |
150 | 0.141 ± 0.003 | 0.138 ± 0.003 | 0.111 ± 0.003 | 0.118 ± 0.001 | |
240 | 0.164 ± 0.003 | 0.145 ± 0.002 | 0.124 ± 0.004 | 0.118 ± 0.003 | |
Quenched/tempered | 60 | 0.119 ± 0.004 | 0.216 ± 0.014 | 0.119 ± 0.003 | 0.182 ± 0.04 |
150 | - | - | - | - | |
240 | - | - | - | - |