Rubber Coefficient Of Friction Table

The friction force is the force exerted by a surface when an object moves across it or makes an effort to move across it.

Rubber coefficient of friction table.

μ static μ s or kinetic μ k frictional coefficient. 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. Coefficients of friction between materials are best determined through testing. F f μ n 1.

References learn more about contacts. However it is possible to find tables in the literature for friction coefficients between various materials. Static and kinetic coefficient of friction. 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.

Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction. Rubber doesn t have a single constant coefficient of friction. Static friction is friction between two or more solid objects that are not moving relative to each other. The coefficient depends on temperature and other things.

Showing the concept of coefficient of friction. Static sliding static sliding. A table below shows approximate friction coefficients for various materials. All values are approximate and are only suitable for guidance only.

N normal force between the surfaces n lb there are at least two types of friction forces. The coefficient of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. Dry steel dry steel 0 70 0 57 0 80 greasy steel dry steel 0 23 0 16 0 90. Coefficient of friction dry lubricated test method static sliding static sliding note.

The sliding lubricated values must be used with extreme care. F f frictional force n lb. Material 1 material 2 coefficient of friction. The table of values.

The only way to determine the accurate coefficient of friction between two materials is to conduct experiments. The frictional force can be expressed as. For example static friction can prevent an object from sliding down a sloped surface. The value of μ s is generally higher than the value of μ k for a given combination of materials.