Planetary Gears: A Few More Things
Before we move on to other topics, here are a few random thoughts on planetary drive design: 1. Learn the “rules” on numbers of teeth. […]
planetary
Maximum Power Density
For some applications, maximum power density is worth the cost and difficulty of a complex epicyclic or “planetary” design. If, like me, you prefer simplicity, […]
Planetary Drives: The Same but Different
Those ancient planetary drives I first got involved with in 1979 (see previous 7/3 posting) were a collection of very simple to make parts. The […]
Suns and Planets
The first planetary drive I helped take apart had three stages of through hardened spur gears encased in a simple cast iron tube with plates […]
Planetary Gearboxes: A Wheel Inside a Wheel
We will never know who invented the internal gear — much less the multitude of “epicyclic” or “planetary” gear systems — but we know from […]