A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are
Crankshaft, pistons and connecting rods for a typical internal combustion engine
An ATS trainee examining a crankshaft, 1941
Marine engine crankshafts from 1942
Flying arm (the boomerang-shaped link between first and second crankpins on a crankshaft)
A crankpin or crank pin, also known as a rod bearing journal, is a mechanical device in an engine which connects the crankshaft to the connecting rod for each cylinder. It has a cylindrical surface, t
Crankshaft
…component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting rods. The crankpins are also called rod bearing journals, and they rotate within the "big end" of…
The driving wheels (crank axle) of a German Reichsbahn Class 44. The crank pin can be seen on the right hand wheel.