Value Of Coefficient Of Friction Between Steel And Rubber

For polished oiled metal surfaces less than 0 1.

Value of coefficient of friction between steel and rubber.

Static and kinetic coefficient of friction. Coefficients of friction between materials are best determined through testing. A car with mass 2000 kg drives with speed 100 km h on a wet road with friction coefficient 0 2. F f 0 62 100 lb 62 lb 1 lb 0 4536 kg.

The basic raw materials are coal iron ore limestone and various chemicals. Typical values for the coefficient of friction when sliding is occurring i e. Example car braking friction force and required distance to stop. For example static friction can prevent an object from sliding down a sloped surface.

However it is possible to find tables in the literature for friction coefficients between various materials. The two main frictions used are static friction and kinetic friction. The coefficient of friction is the ratio of a force to a force and hence has no units. For rubber on tarmac close to 1 0.

The friction force can be calculated as. Showing the concept of coefficient of friction. The dynamic coefficient of friction are. Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction.

For glass on glass 0 4. The coefficient of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. The value of μ s is generally higher than the value of μ k for a given combination of materials. The making of steel involves many processes and stages.

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.