Increasing electronic assembly system speed, ServoClass couplings provide high torsional stiffness, zero backlash, and low hysteresis. They ensure repeatable positioning at speeds up to 10,000 rpm. Employing 304 stainless steel disk packs and 7075-T6 aluminum hubs, other features include corrosion resistant socket head cap screws, single and double flex models in inch and metric bore sizes from 4 mm to 45 mm, clamp-style hubs, and operating temperatures from -30°C to +100°C. Zero-Max Inc., Plymouth, MN. (800) 533-1731.