NM couplings are offered in the industry’s largest variety of stock bore/keyway combinations. These couplings require no lubrication and provide highly reliable service for light, medium, and heavy-duty electrical motor and internal combustion power transmission applications. Applications include power transmission to industrial equipment such as pumps, gearboxes, compressors, blowers, mixers, and conveyors.

NM coupling consists of two hubs and a flexible ring able to compensate for all types of shaft misalignments. The flexible rings are made of Nitrile rubber (NBR) which has a high internal damping characteristic that enables to absorb and dampen torsional vibrations, operate effectively in a temperature range of -40 °C to +100 °C. The NBR material also resists oil, dirt, grease, moisture, ozone, and many chemical solvents.