crankpin

or crank pin

[ krangk-pin ]

noun

, Machinery.

1. a short cylindrical pin at the outer end of a crank, held by and moving with a connecting rod or link.

crankpin

/ ˈkræŋkˌpɪn /

noun

1. a short cylindrical bearing surface fitted between two arms of a crank and set parallel to the main shaft of the crankshaft

Word History and Origins

Origin of crankpin¹

First recorded in 1830–40; crank ¹ + pin

Example Sentences

Eastwick and Harrison, it is true, favored an eccentric drive for feed pumps, but they mounted the eccentric on the crankpin of the rear driving wheel and thus produced in effect a half-stroke pump.

From Project Gutenberg

Bore a hole through the middle of the wheel-holder and insert the crankpin, D, which should be about 1/2 in. in diameter.

From Project Gutenberg

The crankpin should fit tightly; if necessary drive a brad through to keep it from slipping.

From Project Gutenberg