image = Axle.scad.png |designers = [[User:Tim|Timothy Schmidt]] |date = 2019 |vitamins = |materials = |transformations = |lifecycles = |tools = [[Metal lathes]] |parts = |techniques = |files = |suppliers = |git =

Parts Motion parts

=Introduction= Keyed shafts rotate inside axial bearings to transmit power. Keys are fit into keyways to fix wheel hubs, gears, sprockets, and other accessories to keyed shafts.

=Challenges= Power transmission often requires rotating shafts with sprockets, brakes, pulleys, gears, wheels, and many other types of devices attached in unique configurations.

=Approaches= A round steel shaft with a [https://en.wikipedia.org/wiki/Key_(engineering) keyway] allows for similarly keyed interchangeable components to be positioned securely along it's entire length. Such a shaft can be manfactured from round stock with as little as a [https://en.wikipedia.org/wiki/Broaching_(metalworking) broach] and a hammer. * [https://www.surpluscenter.com/Power-Transmission/Shafting/Keyed-Shafting/1-x-36-Keyed-Shafting-1-2982-100-3.axd 1“x36” keyed shaft] * [https://www.surpluscenter.com/Power-Transmission/Shafting/Keyed-Shafting/1-x-72-Keyed-Shafting-1-2982-100-6.axd 1“x72” keyed shaft] <gallery> Rear wheel assembly.jpg| </gallery>

=Development targets=

indexed shafts

splined shafts