Nidec/U.S. MOTORS expands, enhances line of vertical pump motors for severe duty environments
ST. LOUIS – March 28, 2024 – Nidec Motor Corporation has expanded its line of Totally Enclosed Fan Cooled (TEFC) vertical motors, with a new medium-high thrust motor and enhancements to its medium thrust inline motor. These two U.S. MOTORS® products are available in frame sizes 182 through 286 and are specifically engineered for use in severe duty environments.  

The motors drive pumps that are used in many different industries, such as water/wastewater, petrochemical, power, and mining. They feature improved conduit box sealing, cast iron frame, brackets and fan cover guard, and through-the-bearing lubrication for better expelling of used grease, which extends motor life and is particularly critical for vertical motors. The motors also include an option to meet API® 610 driver requirements. 

“These new motor offerings are the result of listening to feedback from customers and adding the features they wanted,” said John Frese, Senior Product Manager, U.S. MOTORS Division.  “At Nidec we are always looking to innovate to meet evolving needs, across all the industries we serve. This is a good example of how we do that.”

The new CTV-3 & TVC-3 medium-high thrust is intended for use on vertical turbine pumping applications that do not require a non-reverse ratchet where the motor’s thrust bearings can provide an acceptable L-10 bearing life. This product is available in Hostile Duty® and CORRO-DUTY® constructions. This product can be provided in full compliance with API 610 shaft, flange and endplay tolerances as an option.

The TVC-9 medium thrust CORRO-DUTY® motor is designed for use with ANSI® B73.1 and API 610 vertical in-line centrifugal pumps that require the motor to manage the axial loading. A rigid connection between the pump shaft and the motor shaft allows the motor bearings to support the thrust loads generated by the pump's impeller. API 610 tolerances are also available as an option on this product.
More information on U.S. MOTORS products can be found at

About Nidec Corporation, Nidec Motor Corporation and U.S. MOTORS

Nidec Corporation is the world's No.1 comprehensive motor manufacturer. Based in Kyoto, Japan, Nidec Corporation offers motors ranging from micro-size to super large, as well as application products and services in IT, automation, home appliances, automobiles, commercial and industrial systems, environmental, energy, and many other businesses. Nidec is comprised of approximately 340 companies employing more than 110,000 people all over the world. 

Nidec Appliance, Commercial and Industrial Motors (ACIM) is a business unit of Nidec that manufactures a full line of high efficiency motors used in applications ranging from air conditioning condensers, HVAC blower motors, rooftop cooling towers, commercial refrigeration, and appliances, to agriculture, water treatment, mining, oil and gas, and power generation, to pool and spa. The division also makes motors, controls, and switches for automotive and commercial markets. Some of the product brands include U.S. MOTORS®, RESCUE®, NIDEC® and EMBRACO®. 

The U.S. MOTORS brand encompasses a complete line of general and special purpose commercial and industrial motors from 1/30 horsepower through 4000 horsepower for a wide variety of applications. Since 1908, the U.S. MOTORS brand has stood for exceptional product reliability and performance. It is one of the oldest and most trusted brands in the motor industry and is recognized worldwide as the mark of leadership and technological innovation.

For more information contact:

Terri Waters

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