Rubber Coefficient Of Friction Table

F f frictional force n lb.

Rubber coefficient of friction table.

The sliding lubricated values must be used with extreme care. For example static friction can prevent an object from sliding down a sloped surface. All values are approximate and are only suitable for guidance only. The value of μ s is generally higher than the value of μ k for a given combination of materials.

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. Showing the concept of coefficient of friction. Rubber doesn t have a single constant coefficient of friction. μ static μ s or kinetic μ k frictional coefficient.

The table of values. The coefficient of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. 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 frictional force can be expressed as.

N normal force between the surfaces n lb there are at least two types of friction forces. Static and kinetic coefficient of friction. Friction coefficient table of solid lubricants metals plastics and anti friction materials. The friction force is the force exerted by a surface when an object moves across it or makes an effort to move across it.

However it is possible to find tables in the literature for friction coefficients between various materials. Static sliding static sliding. The coefficient depends on temperature and other things. 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. Static friction is friction between two or more solid objects that are not moving relative to each other. Coefficients of friction between materials are best determined through testing. Dry steel dry steel 0 70 0 57 0 80 greasy steel dry steel 0 23 0 16 0 90.

References learn more about contacts. Coefficient of friction dry lubricated test method static sliding static sliding note. Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction. A table below shows approximate friction coefficients for various materials.