How to Size and Select a Gearbox: A Motion Engineer's Guide
Aug 24, 2012 · To use the chart, find the point where 2 hp and 15:1 ratio intersect. In this case, that indies a size 726 gearbox. According to one manufacturer's productnumber system, size 726 defines a gearbox that has a center distance. Such charts also work in reverse, to let engineers confirm the torque or speed of a given gearbox size.