New sizes of Bellows couplings from Huco Engineering Components provide peak torque capability in excess of 200Nm and there are now four ranges from which to choose the suitable product for the application. The characteristics the stainless steel and nickel ranges all have in common are their high torsional stiffness, low spring rates – resulting in minimal radial and axial bearing loads – and an exceptional ability to translate motion accurately and effectively. All these couplings have no moving parts and can deliver quality of motion at high rotational speeds. The original Huco stainless steel bellows couplings, Huco Flex-B stainless steel bellows, are available in three standard configurations – short, long and stretched. The stainless steel bellows are fastened to the hubs by a swaging technique that overcomes the uncertainties of bonding or soldering. The convolutions are torsionally rigid but elastic in the lateral and longitudinal planes. This type of bellows coupling is limited to a peak torque of 12.5Nm. In common with existing versions, this range is rated for continuous uni- and bi-directional rotation and when dynamically balanced rotation can be up to 25,000rev/min.
