https://superhivemarket.com/products/precision-gears

Blender 4.0 - 5.2

• This is a Blender add-on designed to bring a wide variety of mathematically precise involute gears to the Blender world. Furthermore, all of this is encapsulated in a system that is as close as possible to a pseudo-"parametric" system, allowing you to modify the gears on the fly. A rigging system is also integrated for creating parametric gear trains with animation.