The full line of Gerwah products consists of line shafts and magnetic, metal-bellows, servo-insert, Ring-flex, and safety couplings. The couplings are used when servomotors need a coupling device and come in a wide range of sizes and torque capacities up to 3,800 lb-ft.

Ringfeder Power Transmission USA Corp., 165 Carver Ave., Box 691, Westwood, NJ 07675, (888) 746-4333,

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