Gear

noun

A toothed wheel that can turn another toothed wheel. Gears are how engineers change how fast something turns, or how hard it pushes — a bicycle's gears let you go fast on flat roads and crawl up steep hills.

Mechanical & Power Engineering — Axel
Go Deeper For parents & teachers
A rotating mechanical element with cut teeth that meshes with another toothed element to transmit torque. The gear ratio between two meshed gears — the ratio of their tooth counts — determines the trade-off between rotational speed and torque: gearing down multiplies force but reduces speed, and vice versa. Gears come in many geometries (spur, helical, bevel, worm, planetary) each suited to different shaft arrangements and load cases.

Appears In

The Burning Mountain Chapter 6 — Ash, Acid, and Armour

"Shades tightened the last glove cover. The new gear fit him well - lean, practical, layered for heat and acid. The kind …"

The Burning Mountain Chapter 6 — Ash, Acid, and Armour

"… Ash heavier. Visibility poor. Whoever went up to fix it would need gear better than anything the team had worn that morning."

The Burning Mountain Chapter 6 — Ash, Acid, and Armour

"He accepted the gear with the same careful respect he gave good tools. Lina made two final …"

The Burning Mountain Chapter 7 — The Bear in the Smoke

"Shades stood at the edge of the yard, still in his scorched gear, watching the screen that his repair had brought back to life. He had …"

The Burning Mountain Chapter 8 — Gertie's Plan for Survival

"… capes arrived and were tested by cubs who immediately discovered that emergency gear could also make them look heroic."

See Also

Lever Pulley