Timothy Pond
Friction, Wear, and Lubrication
10/25/12
The purpose of this project is to investigate the rolling friction of wheel bearings. It is important for
wheels that support transport machinery such as cars, trucks, busses, and trains to reduce friction as
much as possible. Very small difference in friction for different wheel bearings can make a different
over time. This can create much cost when considering fuel mileage. The affect of different materials
and lubrication methods will also be investigated. The lifespan of different wheel bearings will also be
considered. The cost associated material replacement due to excessive wear and higher initial cost will
be compared. In some instances it may be more economical procure a more expensive bearing system
initially that will last longer than a cheaper bearing that will wear out and cost more over the same time
period.