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AC Motors

FEATURE ARTICLES | 2025-03-01

Aerospace Motor Market Trends

The trade show circuit has offered a wealth of e-mobility and motor technologies recently. From IMTS and Pack Expo to MINExpo and CES 2025, there are plenty of disruptors in the motor segment for power transmission components. One area—in particular—is the aerospace industry where vertical takeoff and landing (VTOL) rotorcrafts continue to redefine aerial transport, variable frequency drives (VFDs) support aircraft performance, stepper motors provide passenger comfort and software enables engineers to optimize electric motor design.

PUBLISHER'S PAGE | 2025-03-01

A New Phase in Motor Technology

If you haven’t been paying attention lately, you might think that electric motors are an old, stodgy technology. After all, most of the real inventions occurred way back in the nineteenth century, with contributions from historical geniuses like Faraday and Tesla. We’ve been using DC motors and AC induction motors since the late 19th century. In many cases the basic design has remained unchanged.

PRODUCT NEWS | 2025-02-12

Applied Motion Products Introduces AW Stepper Motors

Applied Motion Products introduces the AW Stepper Motors, featuring an IP65-rated design that ensures reliable operation in harsh environments. Engineered for a high level of protection, these motors effectively shield internal components from external contaminants such as dust, dirt, moisture, and grease. 

PRODUCT NEWS | 2025-02-12

ABB Unveils IP69 Ultra-Premium Efficient Motor at IPPE 2025

ABB launched the Baldor-Reliance Food Safe SP5+ motor, the world’s first IP69 ultra-premium efficient motor, at the International Production & Processing Expo (IPPE) on January 28. This advanced technology sets a new benchmark for energy efficiency, hygiene and durability in food and beverage production environments.

PRODUCT NEWS | 2025-02-10

Kollmorgen Expands Functional Safety Support with SafeMotion Monitor Upgrade

Kollmorgen has announced the latest update to its SafeMotion Monitor (SMM) firmware: SMM2.0. This upgrade allows OEMs to leverage SMM functional safety features with more encoder and motor types to support a wider range of applications such as material forming, multi-axis measurement equipment, food processing and food packaging.

REVOLUTIONS | 2024-12-02

Power Density Progress

Productivity and efficiency are paramount in the highly competitive snack food production industry. JD Manufacturing, Inc (JDM) in Pine Bluffs, WY, stands out as a leader with its high-performance automatic batch fryers, which are engineered specifically for kettle chip production. The batch frying process imparts kettle chips, whether made from potatoes, sweet potatoes, parsnips, carrots, or beets, with their distinctive premium texture and taste.

PRODUCT NEWS | 2024-09-03

Parvalux by Maxon Offers Rapid Prototyping Capabilities for Motors

The latest innovation by Parvalux is their ability to provide prototype motors at a rapid pace. The company has designed and manufactured a series of modular components that are easily mixed and matched so that users get a paired system from one manufacturer rather than piecing together components such as motors, gearheads, brakes, and encoders from various manufacturers. The ability to create a near optimal motor drive for your application just became faster and easier. In a three-step selection process, designers can purchase a motor that is built to order using the company’s online configurator. 

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REVOLUTIONS | 2024-02-08

Interact Analysis Examines Low Voltage AC Drive Market

The low voltage (LV) AC drive market saw unit shipments surpass 20 million in 2023 as the market continues to expand, new data from Interact Analysis shows. According to the market intelligence specialist, the pace of growth slowed last year and is expected to continue to do so in 2024, with steady growth returning to the global drives market in 2025.

REVOLUTIONS | 2023-02-17

Hannover Messe Motors Preview

PTE will feature a variety of new component technologies online for bearings, motors, couplings, brakes, gear drives, and motion control systems leading up to Hannover Messe 2023 in Germany. First up is a preview of some motor suppliers to check out if you're planning on attending the event online or in-person in April. 

INDUSTRY NEWS | 2022-11-09

Lafert Introduces New Plant in San Donà di Piave

The new production plant is officially in operation after its formal unveiling at Lafert’s 60th anniversary celebrations in San Donà di Piave, Italy, close to the historic headquarters.

PRODUCT NEWS | 2022-08-17

Curtiss-Wright Extends Hybrid and Pure Electric Vehicle Range with Traction Inverter Portfolio

Curtiss-Wright’s Industrial Division recently confirmed its continued commitment to its long-term strategy of advancing the electrification market with the extension of its traction inverter product portfolio. These latest CWTIs offer the most highly efficient and innovative design for use in hybrid and pure-electric applications for on-highway and off-highway commercial vehicles.

REVOLUTIONS | 2022-08-08

The Electric Steel Dilemma and Its Impact on Motor Vendors

Electric steel is used heavily in the manufacturing of electric motors. The material is key to producing the electromagnetic field used to turn the rotor. Without the electromagnetic properties associated with this iron alloy, the performance of electric motors would be substantially compromised. Historically, motors used in commercial and industrial applications have represented a major customer base for electric steel suppliers, and motor vendors have resultingly had little difficultly ensuring prioritized supply lines. However, the share of business held by commercial and industrial electric motor vendors is being threatened by the automotive sector in the wake of electric vehicles.

| 2016-10-10

Factoring In the Power Factor

Recently our customers have indicated a great concern over power factors when starting new development projects for higher-efficiency motors. Wh...
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| 2016-06-03

The Driving Force

In “the good old days” we simply connected a motor to the power lines and that created motion — but those days are disappearing fast. Almost all mo...
TECHNICAL ARTICLES | 2013-12-01

The Workhorse of Industry: The Induction Motor

A brief overview of the induction motor, including the basics of construction, performance and variable speed drives.
TECHNICAL ARTICLES | 2013-10-01

Drive and Motor Basics

A discussion of the basics in DC drives, DC motors, AC drives, AC motors and synchronous motors.
TECHNICAL ARTICLES | 2013-10-01

How to Design a Spur-Crown Gear Set

When designing a spur-crown pair, is there a formula, guideline or design guide for adapting the spur teeth for the radial angle of the teeth in the crown?
FEATURE ARTICLES | 2013-08-01

Product News

The complete Product News section from the August 2013 issue of Power Transmission Engineering
FEATURE ARTICLES | 2012-06-01

Nervy Enterprise and Edgy Engineering: A Cant-Miss Mix

Fairchild International, a U.S.-based manufacturer of underground mining equipment, has produced battery-powered DC scoops since the early 1980s. With 17 different models available, Fairchild offers a size to fit any coal mining operation, making it the leader in the industry.
TECHNICAL ARTICLES | 2011-06-01

Soft Starters vs. Variable Speed - Or Both

Given that many different hydraulic systems recommend the use of either frequency converters or cyclic control (soft starter technologies), the question must be asked - Which one of these solutions is the most cost-effective in reducing energy consumption and providing the most satisfactory payback time?
TECHNICAL ARTICLES | 2010-12-01

A Present State and Future Vision of Motor Drive Technology

One of the driving forces behind the industrial revolution was the invention—more than a century ago—of the electric motor. Its widespread use for all kinds of mechanical motion has made life simpler and has ultimately aided the advancement of humankind. And the advent of the inverter that facilitated speed and torque control of AC motors has propelled the use of electric motors to new realms that were inconceivable just a mere 30 years ago. Advances in power semiconductors—along with digital controls—have enabled realization of motor drives that are robust and can control position and speed to a high degree of precision. The use of AC motor drives has also resulted in energy savings and improved system efficiency. This paper reviews the development and application of inverter technology to AC motor drives and presents a vision for motor drive technology.
FEATURE ARTICLES | 2010-12-01

Medical Pumps with Uncommon Sens(ors)

New generation sensors are improving our quality of life.
FEATURE ARTICLES | 2009-12-01

Honing a Competitive Advantage

Sunnen grows product portfolio with motion control solution from Siemens.
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