Gallagher Precision Polyurethane Molding

Polyurethane Coefficient of Friction


The coefficient of friction between polyurethane elastomers and non-lubricated surfaces decreases with increasing hardness. Since harder elastomers have the lowest coefficient of friction, these materials perform the best where sliding abrasion resistance is necessary. The softer compounds are ideal where friction is required, such as a urethane drive wheel.

These four graphs show the coefficient of friction for polyurethane as a function of different variables including hardness, load and temperature.These four graphs show the coefficient of friction for polyurethane as a function of different variables including hardness, load and temperature. (click to enlarge)