Zero-backlash harmonic drive gearing provides positional accuracy better than 10 arc minutes and a 200 line, 2 channel incremental encoder (w/ index) gives a minimum resolution of 24,000 ppr at the output shaft. Ideally suited for precision servo applications where available space is at a premium.

Harmonic Drive LLC, 247 Lynnfield St., Peabody, MA 01960, (978) 532-1800,