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Most industries are downsizing and trying to do more with less. By switching to dry couplings, the maintenance aspect of running the plant is minimized with the reduced requirement of coupling greasing. Also, motor controls are becoming more and more precise and so the backlash in gear couplings can cause hunting in newer machines. Because of this, the trend is moving towards 'maintenance-free' disc couplings which have zero backlash in addition to other 'maintenance free' couplings like universal joints.