1. gearbox, gear case - the shell (metal casing) in which a train of gears is sealed
   --₁ is a kind of shell, case, casing
   --₁ is a part of transmission, transmission system
   --₁ has parts: transmission shaft
   

Gearbox

A gearbox refers to a mechanical device that is used to transmit power from an engine to the wheels or other driven components. It consists of a series of gears that can be shifted to different positions to change the torque and speed of the output.

Possible Related Products on Amazon:

• Gearboxes for Motorcycles
• Gearboxes for Cars
• Gearbox Lubricants

Senses and Usages

1. Sense: Mainstream - Transmission Component

   Noun: In automotive engineering, a gearbox is a crucial component of a vehicle's transmission system. It is responsible for transferring power from the engine to the wheels, enabling the driver to change gears to suit driving conditions.

   Sample Sentence: The mechanic recommended replacing the worn-out gearbox in my car to improve its performance on the highway.

2. Sense: Technical - Mechanical Device

   Noun: A gearbox, in general mechanical engineering, refers to a device that uses different gear ratios to control the speed and torque of machinery. It can be found in various applications such as industrial machinery, robot arms, and conveyor systems.

   Sample Sentence: The factory's robotic arm malfunctioned due to a faulty gearbox, causing a halt in production.

3. Sense: Informal - Conversational Term

   Noun: In informal conversations, a gearbox can be used figuratively to refer to a person's mental or emotional state, often suggesting their ability to adapt or cope with situations.

   Sample Sentence: Sarah's sudden outburst caught me off guard; I guess she really needs to work on her emotional gearbox.