... efficiency HYBRID PERMANENT MAGNET (HPM) MOTOR directly coupled to a leading efficiency, TWO STAGE airend, Two-Stage Nirvana ... bearings, gears, pulleys, belts, couplings or motor shaft seals to wear, leak or need replacing. In addition, there is ... eliminating gears, pulleys, belts, couplings and motor shaft seals.Transcendent TechnologyNirvana's exclusive Hybrid Permanent Magnet motor has ...