Revolutions per Minute

Unit to describe the rate of rotation of a body.

1 revolution per minute=1 rev min-1 1 rpm=1 revolution per minute
1 rpm=0.1047 rad s-1 1 rev s-1=60 rpm

Second hand on clock1 rpm
Gramophone record331/3, 45, 78 rpm
Audio CD180 to 500 rpm
Automobile IC engine speed range750 to 6000 rpm
Hard disc drive5400, 7200, 10000, 15000 rpm
Formula 1 engine20000 rpm
48x CDrom rotational speed (burst speed)24000 rpm
Engine Turbocharger150000 rpm

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See also: Angular Velocity, Revolutions per Second, Tachometer.

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Subjects: Mechanical Engineering Physics

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