Steel On Rubber Coefficient Of Friction

Dynamic coefficient of friction and restitution.

Steel on rubber coefficient of friction.

1 2 2 static friction in rubber pad forming processes 3 1 3 static friction and tribological system 3 1 3 1 static friction introduction 3 1 3 2 static friction and tribological system 4 1 4 outline of the dissertation 5 2. Showing the concept of coefficient of friction. For example static friction can prevent an object from sliding down a sloped surface. Compared to steel silicone rubber is 2 to 7 times greater.

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 of static friction typically denoted as μ s is usually higher than the coefficient of kinetic friction. Static friction 7 2 1 friction and coefficient of friction 7 2 2 static friction regime 9. Static and kinetic coefficient of friction.

The basic raw materials are coal iron ore limestone and various chemicals. The making of steel involves many processes and stages. 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 dry aluminiumdry steel 0 70 0 50 0 85 dry aluminiumgreasy steel 0 23 0 16.

However it is possible to find tables in the literature for friction coefficients between various materials. Ref links 1 below the american gear manufactures association agma recommends a value of between 0 12 0 15 for hydraulically expanded hubs and 0 15 0 20 for shrink or press fit hubs. These companies can provide surface coating fluids containing particles to increase the coefficient of friction i e. References learn more about contacts.

Where μ s is the coefficient of static friction and μ k is 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 coefficient of friction of silicone rubber ranges from less than 0 25 to more than 0 75. 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.

Static friction is friction between two or more solid objects that are not moving relative to each other. 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. Coefficients of friction between materials are best determined through testing. Steel is about 10.

The two main frictions used are static friction and kinetic friction. Lower durometers have higher coefficients.