differential gear


differential gear

noun

Definition of DIFFERENTIAL GEAR

:  differential 3a

First Known Use of DIFFERENTIAL GEAR

circa 1859

differential gear

noun    (Concise Encyclopedia)

In automotive mechanics, a gear arrangement that transmits power from the engine to a pair of driving wheels, dividing the force equally between them but permitting them to follow paths of different lengths, as when turning a corner or traversing an uneven road. On a straight road the wheels rotate at the same speed; when turning a corner the outside wheel has farther to go and would turn faster than the inner wheel if unrestrained. The automobile differential was invented in 1827; originally used on steam-driven vehicles, it was well known when internal-combustion engines finally appeared.

Browse

Next Word in the Dictionary: differential geometry
Previous Word in the Dictionary: differential fertility
All Words Near: differential gear

Seen & Heard

What made you want to look up differential gear? Please tell us where you read or heard it (including the quote, if possible).