Three most common method of reducing friction are: Making surfaces smooth Applying lubrication between surfaces Introduce a rolling member between two surfaces eliminate direct contact between two surfaces.
(Three most common method of reducing friction; are; Making surfaces smooth Applying lubrication between surfaces Introduce a rolling member between two surfaces eliminate direct contact between two surfaces)
Three most common method of reducing friction
are
Making surfaces smooth Applying lubrication between surfaces Introduce a rolling member between two surfaces eliminate direct contact between two surfaces