NovaTorque, Inc. Backs Claim of Superior Reliability and Motor Life with a New Motor Industry Benchmark 7-Year Warranty

NovaTorque, Inc. has introduced the motor industry’s longest warranty: 7 years, more than doubling the standard warranty of other leading motor manufacturers.

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NovaTorque, Inc. has introduced the motor industry’s longest warranty: 7 years, more than doubling the standard warranty of other leading motor manufacturers.

“The most common motor failure mechanisms of general purpose AC induction motors have long been understood. In order, they are bearing failure, stator winding insulation failure, and rotor mechanical failure. NovaTorque’s unique motor design either eliminates or substantially mitigates each of these failure modes,” states Ramon Guitart, Vice President of Engineering, NovaTorque.

Bearings used in the power ranges that NovaTorque offers (up to 20hp) and the markets it serves (fans and pumps) are nearly universally sealed and non-regreasable. The ultra high efficiency of the NovaTorque permanent magnet motor results in lower bearing temperature, typically 30 to 40 degrees C lower. The lower operating temperature translates into bearing life two to three times longer than the same bearing operating in the same environment in the same application in an AC induction motor.

The stator electrical windings of the NovaTorque motor are bobbin-wound with no end-turns and no chance of phase-to-phase shorting due to insulation damage, as may occur during coil insertion in the lamination slots of induction and conventional permanent magnet motors. Further, the simple nature of the NovaTorque winding process does not stress the wire conductor during the winding operation. The entire stator is encapsulated to prevent vibration-induced stresses that may lead to wire fatigue. Additionally, NovaTorque stator windings do not share slots so the phase-to-phase voltages induced by dv/dt are minimized, preventing a leading cause of insulation breakdown.

Finally, the dual conical-shaped mating rotors in a NovaTorque motor are constructed such that the magnets and magnetic material are mechanically constrained.

“For the last several years, we have been successfully selling the industry’s most energy efficient design. The superior efficiency, along with several other design attributes, yield a product superior in reliability and longer in life. Today, NovaTorque is proud to introduce the motor industry’s longest warranty,” states Scott Johnson, Vice President of Sales, NovaTorque.

Emily Liggett, NovaTorque CEO comments, “We are committed to leadership and innovation in everything we do at NovaTorque. We are thrilled to be in the position to take this very meaningful step in support of our customers.”

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