Planetary gearheads from the Zenith Div. of Parker Hannifin Corp., Sanford, N.C., come in two performance levels. Precision is for applications requiring exacting precision and Utility is for economical opportunities. There are 116 gearhead products in frame sizes 60, 92, 115, and 142 mm, and reduction ratios range from 3 to 100 in right-angle and in-line configurations. Standard gearhead orders including custom motor adapters are shipped within 72 hr.