German FETRA coupling FETRA model FETRA price

FETRA couplings transmit motion by welding or bonding a thin-walled corrugated tube (bellows) directly to the two coupling halves. This type of coupling features a simple structure, compact dimensions, ease of machining and installation, and high transmission accuracy. It is mainly used in low-power precision machinery and control mechanisms that require compact structures and high transmission accuracy. The coupling consists of two hubs and a thin-walled metal tube, connected by welding or bonding. Although many other materials are available, stainless steel and nickel are the most common materials for the metal tube. Nickel tubes are produced by electrodeposition.