Desirable Properties for friction materials/linings for clutches and brakes
The two materials in contact must have a high coefficient of friction.
The materials in contact must resist wear effects, such as scoring, galling, and ablation.
The friction value should be constant over a range of temperatures and pressures
The materials should be resistant to the environment (moisture, dust, pressure)
The materials should possess good thermal properties, high heat capacity, good thermal conductivity, withstand high temperatures
Able to withstand high contact pressures
Good shear strength to transferred friction forces to structure
Should be safe to use and acceptable for the environment
Note: Brake materials from asbestos are not safe and are no longer acceptable for use in
brakes and clutches
Important properties of materials used for brakes and clutches
Note: These properties are very general in nature and should not be used for detail design. Suppliers
information should be used for important work. Asbestos should not be used for new or replacement
equipment.
