The ubiquitous ball spline. Basically, it is a type of mechanical element used in a variety of industrial applications where precise movement and alignment is required, like machine tools, robot arms ...

State machines are so common that there are tools devoted to creating them by drawing circles and arts. There are simulators that will recognize your state machine ...

What makes rotary ball splines ideal for dual motion How preload influences spline performance Why groove shape and ball contact matter The pros and cons of crossed-roller vs. angular-contact bearings ...