Wear coefficient

Symbol kW
Unit 10⁻⁶*mm³/(Nm)
Attribute-ID stplus_result_vdi_2736_2014_wear_coefficient
Numeric ID 9921
Value Type PMTechValue

Wear coefficient* kW in 10-6 mm³/(N• m) for dry operation

Material kW
POM/steel (with Rz = 0,45 µm) 1.0
POM/steel (with Rz = 1,50 µm) 3.4
PBT/steel (with Rz = 0,45 µm) 3.7
PBT/steel (with Rz = 1,50 µm) 7.8

*Reference values from pin-on-disc tests, see VDI 2736 Part 1

Source: VDI 2736:2014-06 Sheet 2