Some Mechanisms Using Internal Gears with Small Difference in Numbers of Teeth

Abstract

Despite of some drawbacks (interference, small contact ratio) internal gears with small difference in numbers of teeth have some advantages, especially when they are used in hypocycloid mechanisms (high transmission ratio and high torque at small size). This paper is focusing on using these kinds of gears in mechanisms that are using the benefits of them. Some mechanisms converting rotary motion into translation and hypocycloid mechanisms will be discussed.