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Definitions from WordNet

Definitions from the Web

Epicyclic Gear

Definition

An epicyclic gear, also known as a planetary gear, is a type of gear system that consists of one or more outer gears, called planet gears, that revolve around a central gear called the sun gear. The planet gears are typically mounted on a separate carrier or arm, which can rotate about the central gear, creating complex gear ratios and allowing for a wide range of applications.

Senses

Sense 1: Mechanical Engineering

In mechanical engineering, an epicyclic gear system is often used to transmit torque and provide speed variation. It can be found in various mechanisms such as automotive transmissions, robotics, industrial machinery, and watches.

Sample sentence: The automatic transmission of the car utilizes an epicyclic gear system to smoothly change gears and optimize engine performance.

Related products: Automotive transmissions, Robotic systems

Sense 2: Astronomy

In astronomy, an epicyclic gear refers to a model used to describe the motion of celestial bodies. It involves the use of circular motion around a central point, imitating the planet-like orbits within our solar system.

Sample sentence: The Ptolemaic model of the solar system incorporated epicyclic gears to accurately predict the positions of planets and other celestial bodies.

Related products: Astronomy books, Planet models

Usage

Epicyclic gears are widely used in various industries due to their versatility and efficiency. They enable compact designs, torque multiplication, speed variation, and precise motion control.

Sample sentence: The compact size and high torque transmission capability of epicyclic gears make them ideal for applications in robotics and aerospace technology.

Related products: Robotics kits, Aerospace technology components