A non-circular gear (NCG) is a special gear design with special characteristics and purpose. While a regular gear is optimized to transmit torque to another engaged member with minimum noise and wear and with maximum efficiency , a non-circular gear's main objective might be ratio variations, axle displacement oscillations and more.

2000年3月1日 · When a machine must provide unusual displacement or speed characteristics, don’t overlook noncircular gears. These oddly-shaped gears can fulfill several types of special motion requirements,...

Noncircular gears are specially designed gears having unique characteristics and asymmetric shapes, i.e., elliptical, eccentric circular, oval or internal noncircular, etc. usually to fulfill a specific purpose.

2025年1月15日 · Noncircular gears are used in agricultural machinery such as seeders, plows, and harvesters to control varying rotational speeds needed for different tasks. These gears allow for changes in speed and torque, helping optimize the performance of heavy machinery.

2024年5月28日 · Non-circular gears (NCGs) represent a significant leap in mechanical engineering, diverging from the traditional circular gear designs. These gears, shaped in ellipses, polygons, or other non-circular forms, offer unique advantages and …

This project is a non-circular gears system generator: the central gear in orange has a certain shape, and all the other gears in red are built to accomodate it. All of them have a fixed rotation axis.

2024年9月23日 · What Are Non-Circular Gears? Non-circular gears are gears that deviate from the traditional circular form. These specialized gears are designed to achieve specific mechanical advantages, like controlling rotational speed, torque, or force at different points in their cycle.

2019年3月23日 · The paper covers design and generation of gear drives with non-circular gears: (a) a gear drive formed by an eccentric involute one and by a non-circular gear; (b) generation of functions by...

The study makes a review of principles design and manufacturing of non-circular gears. The contribution delineates the basics of analytic formulae of pitch curves for a given transfer function.

Non-circular gears (NCGs) were first sketched by Leonardo da Vinci around 1500 and have since found their way into many applications. The circular gears are usually designed to transmit constant torque with maximum efficiency and minimum noise.