The couplings accommodate shaft sizes up to 2 in. All parts are of carbon steel, allowing the couplings to handle repeated torque spikes that sometimes brake all-aluminum-style couplings. Removable clamp rings on the coupling allow for quick installation and removal. Coupling halves disconnect simply by removing the spider and loosening the clamp ring screws.

Gerwah USA, 5148 Kennedy Rd., Suite 600, Atlanta, GA 30297, (800) 211-3968,