FREEWHEELING

v. coast, move freely; coast by means of a freewheel

In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. An overdrive is sometimes mistakenly called a freewheel, but is otherwise unrelated.The condition of a driven shaft spinning faster than its driveshaft exists in a bicycle going downhill when the rider holds his or her feet still, no longer pushing the pedals. Without a freewheel the rear wheel would drive the pedals around.An analogous condition exists in an automobile with a manual transmission going down hill or any situation where the driver takes his foot off the gas pedal, closing the throttle; the wheels want to drive the engine, possibly at a higher RPM. In a two-stroke engine this is a lethal situation: as the engine depends on fuel for lubrication, a shortage of fuel to the engine would result in a shortage of oil in the cylinders, and the pistons would seize after a very short time causing extensive engine damage. Saab automobiles used a freewheel system in the two stroke models for this reason and maintained it in the V4 and early Saab 99 for better fuel efficiency.
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Adjective
1. free of restraints or rules; "freewheeling foolishness"; "the versatility of his poetic freewheeling style"
(similar) unrestrained
2. cheerfully irresponsible; "carefree with his money"; "freewheeling urban youths"; "had a harum-scarum youth"
(synonym) carefree, devil-may-care, happy-go-lucky, harum-scarum, slaphappy
(similar) irresponsible

Noun
1. a clutch (as on the rear wheel of a bicycle) that allows wheels to turn freely (as in coasting)
(hypernym) clutch
Verb
1. live unhurriedly, irresponsibly, or freely; "My son drifted around for years in California before going to law school"
(synonym) drift
(hypernym) exist, survive, live, subsist
(verb-group) drift
(derivation) free agent, free spirit, freewheeler
2. coast in a vehicle using the freewheel
(hypernym) coast

Synonyms and related words:
autarchic, autarkic, autonomous, free-spirited, independent, individualistic, inner-directed, neutral, nonaligned, nonpartisan, self-contained, self-dependent, self-determined, self-directing, self-governed, self-governing, self-reliant, self-subsistent, self-sufficient, self-supporting, sovereign, third-force, third-world
  

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