The holiday gift catalogs have started to arrive at my house. Over the years our gift list has been pared down, but we occasionally see something unique that is just perfect for someone on the list.
When compared with the traditional gear design approach - based on pre-selected, typically standard generating rack parameters - the alternative Direct Gear Design method provides certain advantages for custom, high-performance gear drives.
Gears with a diametral pitch 20 and
greater, or a module 1.25 millimeters
and lower, are called fine-pitch or low-module gears. The design of these gears has its own specifics.