Crank

Crank may refer to:

==Mechanisms== Crank (mechanism), in mechanical engineering, a bent portion of an axle or shaft, or an arm keyed at right angles to the end of a shaft, by which motion is imparted to or received from it Crankset, the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion Crankshaft, the part of a piston engine which translates reciprocating linear piston motion into rotation Crank machine, a machine used to deliver hard labour in early Victorian prisons in the United Kingdom