Rack & Pinion

a type of linear actuator that comprises a circular gear (the pinion) engaging a linear gear (the rack). Together, they convert between rotational motion and linear motion. Rotating the pinion causes the rack to be driven in a line.

Rack – 17×17, 19×19, 24×24….1.25m to 2m , Pinion 24 teeth/41.5mm Od