gear box

Thân thiện

The mechanic opens the gear box to inspect the internal components.

Definition

Noun: 1. A sealed metal casing containing a set of gears: A mechanical component, typically in a vehicle or machine, that houses a system of gears. Its primary function is to transmit power from an engine or motor to a drive mechanism while allowing the selection of different gear ratios to control speed and torque.

Usage

The term "gear box" refers specifically to the complete, enclosed assembly. It is most commonly associated with the transmission in motor vehicles. * The mechanic removed the entire gear box to repair the damaged gears inside. * A manual car requires the driver to physically shift the gear lever to change the gear box's ratio. * The industrial machine's gear box was filled with oil to lubricate the moving parts.

Advanced Usage

• Technical Context: In engineering, a "gear box" (or gearbox) is a fundamental component for speed reduction or increase, and torque multiplication. It is a critical part of powertrains in automobiles, wind turbines, and industrial machinery.
  • The design of the helical gear box reduces noise compared to a spur gear design.

Variants and Related Words

• Gearbox: A single-word variant that is equally common, especially in technical writing.
• Transmission: In automotive contexts, "transmission" is often used synonymously with "gear box," though it can refer more broadly to the entire system that transmits power, including the gear box as a core component.

Synonyms

• Transmission (specifically in vehicles)
• Gear case
• Gear housing

Related Phrases

• Gear box oil: The lubricant specifically designed for use inside a gear box.
  • The manual specifies changing the gear box oil every 50,000 miles.
• Gear box failure: A breakdown or malfunction of the gear box assembly.
  • The car was towed to the shop due to a complete gear box failure.

Học thuật

Noun

1. the shell (metal casing) in which a train of gears is sealed

Từ đồng nghĩa

• gearbox
• gear case