Table 4.

Wear coefficients.

Engagement	Torque Level (Nm)
	4	5	6
C45/POM	Wear coefficient, ${\mathit{k}}_{\mathit{w}}$ (10−6 mm3/(Nm))
	5.58	9.77	12.96
C45/PVDF	Wear coefficient, ${\mathit{k}}_{\mathit{w}}$ (10−6 mm3/(Nm))
	7.72	10.98	12.62