Review on Gear Less Power Transmission

New magnetic gears gives promise as replacements for mechanical gears, not only because of high reliability and low maintenance, but also because of superior torque-to-weight ratios. A superior torque-to-weight ratio is most unexpected but is s surfacing as a real possibility when the full perimeter of the gear is used to generate torque. Mechanical gears are to be distinguished in this one particular part since only two to three teeth are engaged in a single stage. For this same reason, high gear ratio magnetic gears can be constructed without the use of multiple stages. In this paper, we were planning for design and fabricate a Magnetic Gear drive which will utilize Electric energy as a input source and further with the help of magnetic gear drive we will be transmitting the speed variation at output shaft. Using Magnetic Gear drive we will be able to increase or decrease the output speed at the output shaft .So by using the no of gears we will be able to transmit different gear ratios.