Value Of Coefficient Of Friction Between Steel And Rubber

For rubber on tarmac close to 1 0.

Value of coefficient of friction between steel and rubber.

The coefficient of friction is the ratio of a force to a force and hence has no units. The making of steel involves many processes and stages. For glass on glass 0 4. 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. Coefficients of friction between materials are best determined through testing. Where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction. Example car braking friction force and required distance to stop.

Static friction is friction between two or more solid objects that are not moving relative to each other. The basic raw materials are coal iron ore limestone and various chemicals. Static and kinetic coefficient of friction. 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. The friction force can be calculated as. 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. A car with mass 2000 kg drives with speed 100 km h on a wet road with friction coefficient 0 2.

The coefficient of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. Typical values for the coefficient of friction when sliding is occurring i e. For polished oiled metal surfaces less than 0 1. F f 0 62 100 lb 62 lb 1 lb 0 4536 kg.

The dynamic coefficient of friction are.