Next gen stepper motors come in broad range of small sizes

KOLLMORGEN PMX series next generation of stepper motors is available in six frame sizes (08, 11, 14, 17, 23, 34) each with several stack length and winding options available, providing added flexibility to meet multiple performance and application needs. Each frame size is built with high quality construction which translates to reliability in the field and long service life. Products come with minimal drive adjustments – options for 1.8 and 0.9 degree step angles.

http://www.kollmorgen.com