reduction gear

noun

: a combination of gears used to reduce the input speed (as of a marine turbine) to a lower output speed (as of a ship's propeller)

Examples of reduction gear in a Sentence

Recent Examples on the Web

The intermediate wheel, power reserve differential, and reduction gear all seem to float on the left side of the dial, while the flying tourbillon is suspended at 6 o’clock and the double barrel hovers at 12 o’clock. —Rachel Cormack, Robb Report, 31 July 2025

So instead, the CV joint, driveshaft, and reduction gear all move into a new unit mounted in the wheel. —Jonathan M. Gitlin, Ars Technica, 1 Dec. 2023

Their legs are rigid, powered by motors coupled to reduction gears. —IEEE Spectrum, 13 Dec. 2010

The motor and reduction gears—required to propel the machine—take up a lot of usable space, which forces manufacturers that use traditional electric power trains to rely on high-energy-density cells in order to achieve good range and performance. —Rennie Scaysbrook, Robb Report, 24 May 2023

The helical teeth in the reduction gears have also been micro-polished to reduce their friction. —Csaba Csere, Car and Driver, 5 Apr. 2023

Power comes from a single motor that drives the rear axle through a reduction gear and a limited-slip differential. —Mike Duff, Car and Driver, 1 Sep. 2020

Collectively, these 200-blade rotors—each molded from a single piece of carbon fiber and each fitted with its own combustor, turbine, and reduction gear—would generate in excess of 130,000 pounds of thrust. —David W. Freeman, Popular Mechanics, 20 May 2021

The expanding gases would spin a turbine linked to the fan by a reduction gear, producing 24,000 pounds of thrust per side. —David W. Freeman, Popular Mechanics, 20 May 2021

Word History

First Known Use

1883, in the meaning defined above

Rhymes for reduction gear

• charioteer
• adhere
• ameer
• amir
• appear
• arrear
• astir
• austere
• career
• cashier
• cohere
• compere