COUPLINGS

Couplings are components which connect the torque of one shaft to another. In modern motion control we find the following technologies:

• Metal to metal clutch: stiff regarding rotation and flexible, no backlash, adjust mechanical shift of shafts (axial, lateral and angular), no maintenance
• Elastomer coupling: absorb vibrations, electrically isolating, adjust mechanical shift of shafts (axial, lateral and angular), pluggable versions available
• Magnetic coupling: torque transmission with no mechanical contact, permanent magnet or electro magnet, ideally suited  for pumps or similar, where e.g. some medium needs so be sealed
• Magnetic powder coupling: torque transmission by friction; in the gap between input and output there is a metal powder or gel, which generates a form-locking connection when powered up; the torque value can be adjusted by the current intensity 
• Wrap spring clutch: a spring wraps around the hub and produces a positive connection from input to output shaft; these are available as pure mechanical or electrical clutches; they are ideally suited for dynamic synchronisation of several axis at low load, e.g. in paper transportation systems like in printers, copiers or money handling and sorting machines