Coefficient Of Friction Table Rubber On Steel

Table of static and dynamic friction coeffcient and friction equations given in imperial and si metric units.

Coefficient of friction table rubber on steel. Includes engineering data tables material info manufacturing methods design guides and more. The table of values. The friction coefficient value changes not only with material but also with the position and orientation of the participating materials. Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction.

The table below shows material types and their commonly used values for the dynamic coefficient of friction and restitution. The making of steel involves many processes and stages. 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. However it is possible to find tables in the literature for friction coefficients between various materials.

Below are provided a small number of values showing approximate values of friction coefficients to be used for steel screw fastened connections. The coefficient of static friction for steel is around 0 6 0 15 and the coefficient of kinetic friction is around 0 09 0 6. Polythene steel 0 2 0 2 rubber 0 5asphalt dry 0 8 0 5 0 8 rubber 0 25asphalt wet 0 75 0 25 0 75. Static friction results from the normal force of two objects in contact acting opposite the intended motion of one surface against the other.

The coefficient depends on temperature and other things. The two main frictions used are static friction and kinetic friction. The maximum force of static friction can be calculated by multiplying the normal force by the coefficient of friction specific to the pair of materials in contact. Tool steel 86 rubber 60 a belt tungsten carbide 62 rubber 60 a belt uhmw 56.

References learn more about contacts. Although reliable sources mentioned at the reference section has been used for compiling the above cof table but still the values shown are approximate only. The value of μ s is generally higher than the value of μ k for a given combination of materials. Dry steel dry steel 0 70 0 57 0 80 greasy steel dry steel 0 23 0 16 0 90 greasy steel greasy steel 0 23 0 16 0 90.

Coefficients of friction between materials are best determined through testing. Friction coefficient table of solid lubricants metals plastics and anti friction materials. The basic raw materials are coal iron ore limestone and various chemicals. Rubber doesn t have a single constant coefficient of friction.