Mitsubishi Heavy Industries (MHI), Ltd., has developed the "E series" gear-cutting machines, designed for dry cutting and high productivity. While the lineup of GE series hobbing machines has already been completed, the SE25A is the only gear-shaping machine of this type that is currently available from MHI. Therefore, in an attempt to enhance this product area, we have developed the SE15A, a compact gear shaper that provides excellent high-speed cutting of small gears, especially the kind used in two-wheeled motorcycles. The SE15A attains high-efficiency gear shaping by suppressing the vibrations that are likely to occur at high stroke speeds, and also offers machine layouts that facilitate its introduction into volume production lines, as well as dry cutting, to further improve the productivity of small gear shaping