gear ratio

the ratio of the rotational speeds of the first and final gears in a train of gears or of any two meshing gears.

the ratio of the diameters of the pitch surfaces of any two meshing gears or of the numbers of their teeth.

Origin of gear ratio

First recorded in 1905–10

gear down, gearing, gear knob, gear lever, gear pump, gear ratio, gearset, gearshift, gear train, gear up, gearwheel

When the central pinion is held stationary the hub is driven at a less speed than the chain-wheel; the gear-ratio is 100 : 76.2.
Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7|Various
The gear-ratio of a two-speed gear is the ratio of the high to the low gear.
Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7|Various
In expressing the gear-ratio, the normal speed will be denoted by 100.
Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7|Various

单词	gear ratio
释义	gear ratio noun Machinery. the ratio of the rotational speeds of the first and final gears in a train of gears or of any two meshing gears. the ratio of the diameters of the pitch surfaces of any two meshing gears or of the numbers of their teeth. Origin of gear ratio First recorded in 1905–10 Words nearby gear ratio gear down, gearing, gear knob, gear lever, gear pump, gear ratio, gearset, gearshift, gear train, gear up, gearwheel Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for gear ratio When the central pinion is held stationary the hub is driven at a less speed than the chain-wheel; the gear-ratio is 100 : 76.2. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7\|Various The gear-ratio of a two-speed gear is the ratio of the high to the low gear. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7\|Various In expressing the gear-ratio, the normal speed will be denoted by 100. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7\|Various
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