Epicyclic gear set spare parts

Epicyclic Gear Set Spare Parts

An epicyclic gear set, also known as a planetary gear system, is a complex mechanical arrangement of gears used in various applications. This gear set consists of several components, each with its specific purpose and function. In this article, we will explore the different spare parts of an epicyclic gear set and their importance in maintaining the functionality and longevity of the system.

Sun Gear

The sun gear is a central component of the epicyclic gear set. It is usually the driving gear, providing power to the system. The sun gear's position and rotation determine the overall operation of the gear set. It is typically made from high-strength materials, such as alloy steel, to withstand the forces and pressures involved.

Planetary Gears

Planetary gears, as the name suggests, revolve around the sun gear. These gears are smaller in size and are held in place by a carrier or planet carrier. The number of planetary gears in a set can vary, depending on the specific application and requirements. These gears distribute the load and torque, ensuring smooth operation and power transmission.

Ring Gear

The ring gear, also known as the annular gear, surrounds the planetary gears. It is the outermost component of the epicyclic gear set and meshes with the planetary gears. The ring gear provides support and stability to the system, preventing the gears from moving outward. It is essential for maintaining the gear set's integrity and preventing any misalignment or damage.


The carrier is a crucial part of the epicyclic gear set that holds the planetary gears in place. It connects the planetary gears to the output shaft or other components of the system. The carrier allows the planetary gears to rotate around the sun gear while maintaining their alignment. It is designed to withstand the forces and stresses generated during operation.

Epicyclic Drive Application

Epicyclic gear sets find applications in a wide range of industries, including automotive, aerospace, and robotics. One such application is in automotive automatic transmissions. The compact nature and efficient power transmission of epicyclic gear sets make them suitable for use in automatic gearboxes, providing smooth and seamless gear shifting.

Company Introduction

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Product Promotion

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Author: Czh