Rubber Coefficient Of Friction Table

Material contact properties table the table below shows material types and their commonly used values for the dynamic coefficient of friction and restitution.

Rubber coefficient of friction table. Static friction is friction between two or more solid objects that are not moving relative to each other. Showing the concept of coefficient of friction. References learn more about contacts. F f frictional force n lb.

Dry steel dry steel 0 70 0 57 0 80 greasy steel dry steel 0 23 0 16 0 90. The coefficient of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. Rubber doesn t have a single constant coefficient of friction. The table of values.

F f μ n 1. Friction coefficient table for various material pairs in atmosphere and vacuum see the definition of friction coefficient is shown below the data was collected from various sources 1 2 3. The value of μ s is generally higher than the value of μ k for a given combination of materials. Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction.

The coefficient depends on temperature and other things. F r rolling resistance or rolling friction n lb f c rolling resistance coefficient dimensionless coefficient of rolling friction crf w m a g normal force or weight of the body n lb f m mass of body kg lb a g acceleration of gravity 9 81 m s 2 32 174 ft s 2 the rolling resistance can alternatively be expressed as. The sliding lubricated values must be used with extreme care. N normal force between the surfaces n lb there are at least two types of friction forces.

The frictional force can be expressed as. For example static friction can prevent an object from sliding down a sloped surface. The static and kinetic friction coefficient values reference table shown in this article will be helpful for finding the cof values of commonly used materials. Static sliding static sliding.

Coefficient of friction dry lubricated test method static sliding static sliding note. The only way to determine the accurate coefficient of friction between two materials is to conduct experiments. All values are approximate and are only suitable for guidance only. The friction force is the force exerted by a surface when an object moves across it or makes an effort to move across it.

Material 1 material 2 coefficient of friction. However it is possible to find tables in the literature for friction coefficients between various materials. Coefficients of friction between materials are best determined through testing. Friction coefficient table of solid lubricants metals plastics and anti friction materials.