Coefficient of Friction Tester

What is Coefficient of Friction?

Coefficient of friction, the ratio of the frictional force resisting the motion of two surfaces in contact to the normal force pressing the two surfaces together.

Coefficient of Friction Measurement

Coefficient of friction (COF) is a dimensionless number that is defined as the ratio between friction force and normal force. Materials with COF smaller than 0.1 are considered lubricous materials. COF depends on the nature of the materials and surface roughness.

μ = frictional force (F) / normal force (N)

Materials with COF smaller than 0.1 are considered lubricous materials. COF depends on the nature of the materials and surface roughness. Usually, ASTM D1894 is the most widely used method for COF measurement.

Saicheng coefficient of friction (COF) tester is specialized in measuring the static and dynamic coefficients of friction of plastic film and sheet, rubber, paper, cardboard, woven bag, fabric style, metal material composite belt for communication cable and optical cable, conveyor belt, wood, coating, brake pad, wiper, shoe material, tire and other materials when sliding.