Available in clockwise or counterclockwise directions, the overrunning spring-wrap-type clutches come in shaft sizes from 1 /8 to 5 /8 in. Applications include unidirectional stepping, automatic flywheel decoupling, and backstopping.

Also available are a variety of slip clutches including spring wrapped, adjustable, and miniature. Nordex Inc., 426 Federal Rd., Brookfield, CT 06804, (800) 243-0986, nordex.com