flat crank

flat crank

[′flat ‚kraŋk]
(design engineering)
A crankshaft having one flat bearing journal.
References in periodicals archive ?
The W-8's crankpins are offset 180 degrees -- the "flat crank" design, known for its distinctive exhaust note that's now used on some Formula One racecar and Grand Prix motorcycle engines.
With their tight wobble and high flash, flat cranks match the forage and feeding attitude of early spring bass.