The material combination between hub from steel and flange toothing from carbon fibre-reinfored nylon allows for a longer, maintenance-free permanent operation thanks to further optimised coefficients of friction in the spline combination.
Behavior of friction and wear
The smooth and hard surface (crystalline structure) and the high thermal stability and resistance to lubricants, fuels, hydraulic fluids, dissolvents, etc. make polyamide an ideal material for components stressed by sliding, particularly for the coupling production. While any metallic materials tend to "corrode" in case of dry running, slide combinations with polyamide and steel are operative without any lubrication and maintenance.