Some companies in the U.S. use diametral pitch (or DP) rack & pinions on small, light machines. These rack & pinions are typically lower quality and inexpensive, but work sufficiently and provide reasonable accuracy.
However, companies eventually outgrow the capabilities of these low quality rack & pinions, especially when they want to achieve better accuracy, smoothness and higher linear speeds.
ATLANTA offers a range of soft helical and spur rack & pinions, which are precision milled to provide smoother running and quieter operation while handling higher linear speeds. Our wide range of standard rack & pinion drives allows for maximum design flexibility, so machine builders' requirements always get met