A harmonic gear or strain wave gear is a specialized gearing mechanism often used in industrial motion control, robotics and aerospace for its advantages over traditional gearing systems, …

: one of two or more adjustments of a transmission (as of a bicycle or motor vehicle) that determine mechanical advantage, relative speed, and direction of travel. The industry is …

GEAR definition: 1. a device, often consisting of connecting sets of wheels with teeth (= points) around the edge…. Learn more.

Dec 27, 2025 · Gear, machine component consisting of a toothed wheel attached to a rotating shaft. Gears operate in pairs to transmit and modify rotary motion and torque (turning force) …

Feb 27, 2025 · Gears are used for transmitting power from one part of a machine to another. In a bicycle, for example, it's gears (with the help of a chain) that take power from the pedals to the …

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To provide with gear; equip. 1. To come into or be in gear. 2. To shift a transmission: geared down to take the curve.

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Military rearmament moved into high gear. shift / switch gears, to change one's attitude, course of action, methods, etc., in an abrupt, dramatic, or unexpected manner.

The gears on a machine or vehicle are a device for changing the rate at which energy is changed into motion. On hills, he must use low gears. The car was in fourth gear. He put the truck in …