Force of gravity weight and friction

Lubrication

Lubrication While friction is highly essential in some circumstances, It IS a great nuisance in others. In a car engine, for example, oil under pressure is supplied continuously to all bearing surfaces. Failure of the oil supply will allow metal-to-metal contact and the resultant friction often raises the temperature and causes the bearing and pistons to “seize up”. Although …

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Friction and brakes

Friction and brakes The brake linings of automobiles and industrial machinery are commonly made from woven or molded material incorporating the mineral asbestos. This has good frictional properties and much research has been carried out in the manufacturer’s research laboratories to produce a strong, hard-wearing material with freedom from fade. Fade is the name given to the loss of …

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