Ohio Electric Motors
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The complete Industry News section from the August 2014 issue of Power Transmission Engineering.
2 DC Motor Protection (June 2013)
The purpose of DC motor protection is to extend a motor's lifespan by protecting it from conditions that can damage the motor's windings--both electrically and mechanically.
New Opportunities and Technologies Allow AC Motors to Enhance Motion Control Applications.
4 Keeping Drives Electrically Quiet: Ferrites, Shielding and Grounding (October 2020)
Motion control systems often combine high power drive signals in close proximity (or even within the same cable) with lower level signals, like encoders. You will often see ferrite beads added around cables; their effectiveness in minimizing noise is greatly affected by how they are deployed. This involves which signals are grouped, what are the drive characteristics, and how shielding and grounding are handled in the system.
5 Full Throttle (September 2014)
The Formula Renault 3.5 is seen as a crucial stepping stone on the way into the premier class, the Formula 1. Ambitious racers do not just bring their talents - they also have highly efficient motors on board to control the throttle of their 530-hp V8 engines.
6 Navigating the New Normal (April 2020)
Power Transmission component suppliers discuss COVID-19 Threat and how their companies are responding to keep the supply chain connected.
7 Reducing Food Processing Plant Energy Costs (February 2016)
U.S. manufacturers, such as food processors, face an unprecedented competitive environment and must look for ways to be profitable without negatively affecting the quality of finished products.
8 Lightweight, Highly Efficient Drive System (February 2017)
This paper presents a joint project conducted by Ashwoods Electric Motors and Oerlikon Fairfield that uses planetary drives with an integrated electric motor. Current solutions used in production of off-highway vehicles rely upon large, heavy and inefficient brushed DC or induction motors, coupled to a planetary gearbox. This presents a number of challenges to the vehicle designers such as: limited vehicle range, limited space around the motor/drivetrain, and motor durability. The proposed integrated system utilizes an Oerlikon Fairfield Torque Hub, widely used in off-highway vehicles, and the Ashwoods first-to-market, interior permanent magnet motor. How these products are integrated, i.e. incorporating a brake solution, represents a market-changing product. Using interior permanent magnet (IPM) technology in the motor design means the motor can be up to 70% lighter, 70% smaller and 20% more efficient than traditional motors used in off-highway traction applications.
9 Mining for Solutions (September 2016)
Increasing pressure on many fronts is compelling mine operators to thoroughly examine every phase of their operations. Fluctuating demand that whipsaws mineral prices, government-imposed environmental regulations and rising operating costs related to maintenance downtime all pose serious challenges for the mining sector. Add pressure from customers and stakeholders for more sustainable operations as well as union demands for higher wages, and you have a scenario that requires mine operators to exercise every possible option to achieve more efficient operations.
10 Baldor Motor Basics: Factors that Determine Industrial Electric Bills (August 2017)
A good deal of confusion exists regarding the factors that determine an industrial electric bill. The following information is presented to help sort out the various items on which billing is based, and to offer suggestions on measures to help control and reduce electric utility bills.
11 When it Comes to Mining, Bigger is Best (June 2015)
One of the key challenges in the mining industry today is maintaining throughput in the face of ore grade quality that has declined by 40 percent in the last decade.
12 Engineering Showcase - Motors (June 2020)
This special advertising section features Motors manufacturers.
13 Industry News (March 2017)
The complete Industry News section from the March 2017 issue of Power Transmission Engineering.
14 Industry News (October 2015)
News From the gear Industry
15 Reducing Electricity Cost through Use of Premium Efficiency Motors (February 2010)
motors with premium efficiency counterparts presents businesses with a significant opportunity to reduce operating costs. A comparison between premium and standard efficiency motors from 0.25 to 10 horsepower is conducted; comparisons of full-load efficiencies are shown, and estimated payback periods are calculated. Methods for calculating the yearly kilowatt-hour consumption and yearly cost savings of premium efficiency motors for this horsepower range are also given. The cost advantages of premium efficiency motors are summarized, and relevant examples of real world cost savings are shown.
16 Baldor Motor Basics: Premium Efficiency Motors (October 2017)
Conservation through lighting alterations using different bulbs, ballasts and light sources is well understood and easy to achieve. The use of improved efficiency three phase induction motors has not been as accepted. There are a number of reasons why conservation efforts with motors have not been as popular.
17 Baldor Basics: Motors (March 2017)
This issue our Baldor Basics series continues with the topics of motor temperature ratings and metric motors.
18 Saving Time with Auto-Tuning Drives (March 2017)
If there are two things that are in tight supply in the industry, it's time and talent. Manufacturers are always pressured to do more faster, and the industry is producing fewer experts to help them do it, so the industry's had to get crafty and find what time-cutting procedures they can.
19 Efficiency of Design (February 2018)
Energy efficiency is for more than just motors. Here are some mechatronics companies making sure you get more bang for your buck when it comes to your power bill.
20 Now That Is Smart Manufacturing! (February 2017)
A machine called Sub1 Reloaded solved a Rubik's Cube in 637 thousandths of a second in Munich.
21 Why Direct Drive (March 2017)
In today's highly competitive world, the better someone understands the advantages and benefits of direct drive technology, then the more they will have an advantage in machine building, giving them an edge over their competition.
22 Baldor Basics: Understanding Torque (April 2017)
In the process of applying industrial drive products, we occasionally are misled into believing that we are applying horsepower. The real driving force is not horsepower - it is torque. This paper is developed to impart a deeper understanding of torque, its relationship to horsepower, and the types of loads we most frequently encounter.
23 Baldor Motor Basics - Part 9 (December 2017)
Amps, Watts, Power Factor and Efficiency; Approximate Load Data from Amperage Readings; Power Factor Correction on Single-Induction Motors.
24 Miniature Motion Solutions (June 2017)
Motor technology thrives in aerospace/defense applications.
25 Baldor Basics: Motors (February 2017)
This issue we cover frame sizes and two-speed motors in our continuing series of articles, courtesy of Baldor Electric, dedicated to motor basics.
26 Six Key Elements of Gearmotor Optimization (August 2017)
How to Ensure Reliable Performance, Increased Efficiency and Lowest Total Cost of Ownership.
27 Product News (September 2017)
The complete Product News section from the September 2017 issue of Power Transmission Engineering.
28 The Reliability of Sewer Robots (September 2017)
Faulhaber Provides Motor Technology for Pipe Renovation Projects
29 How to Select a DC Motor: Coreless and Iron Core Brushed DC Motors (June 2017)
DC motors possess linear relationships that allow for very predictable operation. For instance, if enough voltage is applied across the terminals of a DC motor, the output shaft will spin at a rate proportional to that applied voltage. You can take the ratio of the applied voltage over the rated voltage and multiply that number by the no load speed and get the running speed.
30 Motors and Mechatronics - Moving to a Higher Plane (September 2017)
This is an article about motors - preventive motor maintenance, actually. And something else - mechatronics. In today's high-tech manufacturing and industrial use environments, it is near impossible to talk about equally complex motor maintenance and repair-or-replace protocols without it.
31 Familiar Goals, New Solutions (October 2017)
Gearmotor manufacturers find new ways to push the envelope. (With Sidebar on new alternative to planetary gearboxes)
32 Baldor Basics: Applications (June 2017)
Fans, blowers and other funny loads are addressend, along with RMS Horsepower loading.
33 Baldor Motor Basics: Electric Motors and Power Systems and Electric Motors and Voltage (September 2017)
Part 1: There seems to be a lot of confusion about the voltage standards for motors and why they are structured the way they are. Part 2: The effect of low voltage on electric motors is pretty widely known and understood, but the effect of high voltage on motors is frequently misunderstood.
34 Product News (June 2017)
The complete Product News section from the June 2017 issue of Power Transmission Engineering.
35 Taking Aim at Conveyor Systems (October 2016)
It's no secret that conveyor systems are the primary market for gearmotors, and so it shouldn't be much of a surprise that gearmotor manufacturers are looking for ways to cater to that market's needs. From Brother's new VFDs to Siemens' Simotics S-1FG1, a lot of the new solutions in the industry have their own unique quirks, but all fall into a few common veins.
36 Stepper Motor Actuators (June 2015)
How would you compare the efficiency and capabilities of hybrid stepper motor actuators vs. can stack stepper motor actuators?
37 Servo Motor Performance at Stepper Motor Prices (April 2015)
Enhancing production with â” and for â” less is the standing order in todayâ™s manufacturing world. Speeding up production while at the same time looking for ways, to cut, for example, energy costs, is a tricky equation with no single answer; where and how management goes about achieving that can take several paths.
38 The Race for Efficiency (August 2015)
Over the past few decades, energy efficiency in motors has become an ever-increasing concern for OEMs and manufacturers alike. With multiple energy bills mandating higher efficiency across ever-broader spectrums of motors, including the most recent Small Motor Rule by the Department of Energy, efficiency has become an essential consideration when choosing a new motor.
39 The Importance of Thermal Protection for Torque Motors (August 2015)
When talking about high-end machining or manufacturing applications that include direct-drive technology, one of the key advantages of utilizing this particular transmission method is its endurance. Because of the very nature of direct-drive motors they are able to operate at peak performance levels indefinitely â” without any kind of wear or aging â” as long as the motor isnâ™t pushed past its capacity. Unfortunately, because this isnâ™t a perfect world, unexpected things can happen which can cause the motor to overheat. Whether the heat source is due to a parameter being input incorrectly, or an unexpected external force causing more resistance than expected â” it is important to have certain forms of thermal protection in place. Since torque motors are built in such a way that they cannot be repaired and yet maintain their efficiency, it is vital to prevent any overheating â” thus precluding the need to purchase a new one.
40 Motor Madness (October 2015)
This issue we take a long, hard look at motor efficiency, and you should, too. After all, electric motors used in industrial settings are the single largest consumer of electricity in the United States. Upgrading your electric motors is not only good for the environment, but itâ™s also good for your bottom line. Sure, saving electricity lessens the burden on our countryâ™s energy infrastructure. But it also saves you money in the long run.
41 Whats In a Meme (April 2015)
Rosetta Mission mixes with Maxon, Kim K for one unforgettable photo
42 Girls Love Science (April 2015)
Hi. My name is Renee. Iâ™m 12. You might remember me from about a year ago, when my dad wrote about me and the home-made motor project we did together (âœMake the Connection,â February 2014).
43 Energy Efficiency, Configurable Solutions Highlight Pack Expo (December 2014)
A wide variety of companies displayed mechanical power transmission and motion control technologies at Pack Expo, held in November in Chicago. The event, which is the largest packaging and processing trade show in North America, attracted more than 48,000 attendees, according to show owner and producer PMMI. The four-day event included 2,352 exhibiting companies, an increase of more than 19 percent from the previous show in 2012.
44 Motors and Motion Meet in St. Louis (December 2014)
The motors might be small, but the big-brain technology driving these electrical wonders was on full display at the 2014 Small Motor & Motion Association Fall Technical Conference, convened November 4-6 in St. Louis, MO. SMMA, the manufacturing trade association (120 members strong) that tends to the best interests of the electric motor and motion control industries â” including manufacturers, suppliers, users, consultants and universities â” played gracious host to a wide array of presenters from an equally diverse range of sources â” from academia to the federal government. Like gears, motors are most everywhere, as evidenced by SMMAâ™s membership (consumer-, public interest-, national defense- and commercial-oriented) demographic which includes: appliance; transportation; medical equipment; office automation and computers; aerospace; and industrial automation. The associationâ™s mission: To âœserve as the principal voice of the electric motors and drives industryâ and to provide a forum to âœdevelop, collect and disseminate technical and management knowledge.â
45 Gear Fault Diagnosis by Motor Current Analysis: Application to Industrial Cases (February 2015)
The use of motor current signature analysis (MCSA) for motor fault detection â” such as a broken rotor bar â” is now well established. However, detection of mechanical faults related to the driven system remains a more challenging task. Recently there has been a growing interest for detection of gear faults by MCSA. Advantages and drawbacks of these MCSA-type techniques are presented and discussed on a few industrial cases.
46 Diagnosing the Health of Medical Motors (March 2015)
John Morehead, national sales manager of Crouzet Motors (Vista, CA), was bunkered down in his office in Palatine, IL surrounded at all points by ankle-deep snow from an unfortunately terrible Chicagoâ™s winter night.
47 The Doomsday Clock is Ticking for Gearmotor Manufacturers (October 2015)
The secondhand on the Doomsday dial ominously spins around the face, slowly but ever so surely inching the motor industry towards its inevitable terminus:
48 Motor Management - Best Practices (October 2015)
Reducing losses and increasing profits by instituting a motor management plan is what this series of articles is all about. Here in Part I, we discuss how to create a motor inventory and establish repair-or-replace motor guidelines. Subsequent topics in this three-part series will address (Part II) motor failure policies and purchasing specifications, and (Part III) repair specifications and preventive and predictive maintenance, respectively.
49 Product News (September 2016)
News about recent products in the Industry
50 Emerging Motor Technologies (February 2018)
Copper's continuing role in energy-efficient motor development.
51 Linear Motors (October 2016)
When the need arises for linear motion or positioning, there are many choices. One can use an Acme screw, ball screw, rack & pinion, or belts. The cost of a linear motor solution is generally greater than a mechanical linear product, but when one needs highly accurate, repeatable, high-speed motion, then the answer may be a linear motor.
52 How Does An Electric Motor Work (October 2016)
If youâ™re an electrical engineer you know how an electric motor works; if you arenâ™t, it can be extremely confusing. Therefore, hereâ™s the simplified explanation (or the âœhow an electric motor works for dummiesâ version) of how a four-pole, three-phase AC induction motor works in a car.
53 Product News (August 2016)
News about industry products.
54 Closer to the Sun (June 2016)
Without the sun, there would be no Earth and no life. However, our knowledge about our home star is still very limited. This is about to change. In 2018, the European Space Agency (ESA) will send its Solar Orbiter into space, equipped with a thick heat shield.
55 Product News (December 2015)
News about latest products
56 Motor Management - Best Practices (December 2015)
Energy costs and downtime can be greatly reduced by instituting a motor management plan. Part II of this three-part series specifically addresses the establishment of a motor failure policy and the development of purchasing specifications. Part I addressed the general aspects of a motor management plan, including the first steps of creating a motor inventory and guidelines for motor repair and replacement. Part III will examine motor repair specifications as well as preventive and predictive maintenance.
57 Motor Management Best Practices Part 3 (February 2016)
This three-part series on motor management best practices focuses on the importance of instituting a motor management plan as a necessity in effectively administering the electric motors in a facility. The goal of a motor management plan is to take advantage of opportunities for energy savings and increased productivity using energy efficient, reliable motors such as NEMA Premium efficiency motors, herein referred to as âœpremium efficiencyâ motors.
58 Replacing Motors, Counting Savings (Spring 2007)
Th e total U.S. electric motor base exceeds 100 million motors and consumes more than 50% of all electricity generated in the country. Small motorsâ”fractional horsepower to 20-hpâ”comprise 99% of the motor population but consume only 25% of all generated electricity (Refs. 1,3,10,14).
59 Baldor Basics: Motors (December 2016)
Beginning with this initial installment , and with the gracious permission of ABB/Baldor Electric, we are pleased to announce the beginning of a new series -- Baldor Basics: Motors. This is a collection of basicsdriven, motor-intensive articles authored by former Baldor engineer Edward Cowern, PE, a respected name by many in the electric motor industry. During his tenure at Baldor, Cowern - now enjoying his retirement - was tasked with producing a number of motor- and basics-related tutorials, primarily in response to a steady flow of customer questions regarding motors. Today's customers continue to ask questions and seek answers to address their various motor-related issues. As with Cowern's original introduction to the series, we hope you find these articles useful and would appreciate any comments or thoughts you might have for future improvements, corrections or topics.
60 Keeping the Lights on - Machine Monitoring Basics (June 2018)
As manufacturers continually search for ways to cut costs and increase ROI, machine monitoring and predictive maintenance (PdM) solutions are an increasingly cost-effective way for plants and factories to help reduce process downtime.
61 Hybrid Transverse Magnetic Flux Motors - AKA Stepper Motors and Hybrid Servos (March 2020)
This is the first of a series of articles on permanent magnet transverse magnetic flux motors - AKA step motors. These articles will be covering the development history and the various drive technologies used with these motors - both open and closed loop.
62 Dynamic Performance (April 2020)
PTE Examines Gearmotor and Gear Drive Technology
63 A Little Peace of Mind (June 2020)
Condition Monitoring Technology Evolves for Gear Drives, Gearmotors and Gearboxes. Here's a look at what some leading manufacturers are offering.
64 Upgrading Air-Cooled Heat Exchangers (ACHE) and Cooling Towers (June 2020)
Many industrial facilities with air-cooled heat exchangers (ACHE) and cooling towers often have older units installed. Depending on the age, repairs, and maintenance done over the years it may have had an impact on performance. Upon conducting site inspections of the equipment, it is sometimes found that ACHE or cooling tower components have degraded. This can result in a system that is not very energy-efficient and delivers substandard cooling performance.
65 Power - and Sand - to the People (March 2020)
Zach Rountree's life would be a lot easier if his job site was closer to town. As the owner and president of Rountree Construction, he oversees an operation that pulls 200 tons of material an hour out of a remote lake in Stockton, Georgia. Big equipment demands three-phase power, but out in the remote timberlands of rural Georgia, only single-phase power was available.
66 Motor Sizing Unusual Loads (February 2020)
One of the fun parts of the motion industry is involvement in popular movies! Motor specifications can be a bit rough: "I need to spin a 120-pound actor (and chair) 180 degrees in one-half second. He will be sitting up-right."
67 Cost-Effective, High-Performing Motors without Neodymium Magnets - Part II (December 2019)
In Part I we explored various motor technologies used today for industrial and traction motor design. Here in Part II we will explore another motor option: reluctance motors.
68 A Mechatronic State of Mind (February 2020)
Welcome to the Age of Information, where flexible, intelligent drive systems separate the haves from the have nots
69 Integration Nation (February 2020)
Gearmotors handle harsh environments with digitalization, customization and improved service life.
70 Creature Comfort (February 2020)
Intelligent drive technology in the cowshed
71 Transverse Magnet Flux AKA Hybrid Step Motor Driver Techniques (June 2020)
The transverse flux permanent magnet motor -- also known as a hybrid step motor or hybrid servo motor -- has a wide range of performances, depending upon how you drive these motors, and whether you operate them in open loop or one of the many variants of closed loop methods you use. In this third installment we will cover some of the many ways to drive these motors, as well as how these choices affect the performance of these motors.
72 Centralized vs. Decentralized: Choosing the Right Type of Motor Control System (August 2020)
Are you looking for one simple formula to help you choose between centralized and decentralized motor control? Unfortunately, such a formula does not exist. However, evaluating the overall size of the system, comparing labor and material costs, and maintaining flexibility can help guide engineers in the right direction.
73 History-Making Micromotors on Mars! (June 2021)
Helicopter Makes Maiden Voyage Across the Red Planet with Help from Maxon
74 Another Thought: Brace for the Impact of The Washington Solution to Fix Climate Change (September 2021)
How it impacts our industries.
75 Open Loop Step Motor Error Sources - What Closing the Loop Corrects (December 2021)
A look at several Two-Phase Hybrid Step Motors and their dominant error sources, and comment on how the errors are overcome by true servo operation of these motors.
76 Improve Thermal Performance for Ironless Brush DC and Brushless DC Motors (February 2022)
Designers of motor-driven systems must account for thermal issues that can hinder a system's performance and efficiency.
77 High-Power Density Motors (February 2021)
On the tradeoffs between power density, efficiency and cost for high-performance, electric motors in choosing the most applicable technology for a specific application.
78 Motors in Space (September 2020)
Components like motors, bearings and drives are subject to harsh environments on Earth, but they must be at the top of their game to enjoy space travel. Recent applications from Maxon Motors (Return to Mars) and the University of Michigan (Robotic Legs) illustrate the incredible requirements it takes to handle applications in space and how these components can be utilized here on Earth.
79 Closing the Loop around a Transverse Flux Hybrid Step Motor (August 2020)
Transverse magnetic flux motors -- also known as step motors -- become Hybrid Servos when you operate them closed loop. This is the same transformation that happens between running a 3-phase synchronous motor from line voltage as opposed to running it closed loop as a brushless servo. In the case of hybrid motors, there are many degrees of what is advertised as "closed loop," and thus significant differences in the performance improvements seen.
80 Various Coil Configurations Used in Coreless Motors (September 2020)
Three-dimensional finite element analysis (FEA) simulation and research from published information is used to compare the features of various coil configurations.
81 Hybrid Transverse Flux Magnetic Motors - How to Measure Parameters (September 2020)
These versatile, low-cost and high-torque motors may be used open loop or as full servos - and several levels in between. The motor stator laminate designs divide these motors into those optimized for full stepping, and those optimized for micro stepping and servo operation. These differences can be easily measured with basic meters and oscilloscopes. Motor to motor variations can also be easily measured, and motor inductance at nominal speed and current can also be determined.
82 Gearmotor Paint Coatings (December 2019)
The following article explains the commonly used paint components and methods within the gearmotor industry, with a focus on electrodeposition coating (E-Coat). These processes will be described in general, with a closer examination of the E-Coat applications steps. Some pros and cons of each method will be presented along with comparative test results showing the benefits of E-Coat.
83 Motors without Rare-Earth Magnets: What Are the Options (October 2019)
Lower-cost motor technologies exist that can be an attractive alternative to neo-based BL PM motors - and are not subject to unpredictable supply chains
84 The Small Motor Rule, How Will This Affect You (December 2014)
According to the Department of Energy (DOE), more than half of all electrical energy consumed in the U.S. is used by electric motors. To address this, several years ago, the DOE conducted a technical study as to what could be done to raise the efficiency levels of âœsmallâ motors. After years of study and litigation, the Small Motor Rule (SMR) was passed that covers two-digit NEMA frame single- and three-phase ¼ through 3 horsepower motors in open enclosures.
85 The Clean Cut (August 2018)
JBT Corporation benefits from Kollmorgen Hygienic motor design in food and beverage application.
86 Motor Insight: Anatomy of a Drone (September 2018)
The skies are full of them in 2018 - drones flying around amusement parks, job sites and even your own backyard. There are drone racing leagues on ESPN, drones capturing wide angle shots over film locations and government drones keeping a bird's eye view on the Mexican/America border.
87 Gearmotors Pulling, Pushing and Controlling Their Weight (October 2018)
Industrial mainstay adapts to remain relevant in a 4.0 world
88 A Mechanical Healthcare Plan (June 2018)
Motor Operation Gets Big Boost from Smart Technology (Here's How to Take Advantage)
89 Product News (June 2018)
Elastic housing deformation by MESYS, plus new motors, actuators, gear drives and more.
90 Mechanical Motion in Tight Spaces (March 2018)
Framo Morat and Dunkermotoren Produce Drive Systems for Automatic Guided Vehicles.
91 Baldor Motor Basics Part 11 (March 2018)
Explosion-Proof Motors in Division 2 Areas and DC Drive Fundamentals
92 Industry News (March 2018)
The complete Industry News section from the March 2018 issue of Power Transmission Engineering.
93 Product News (April 2018)
New servo drives, gear pumps, stepper motors and more.
94 Step vs. Servo - Selecting the Best (October 2018)
Over the many years, there have been many technical papers and articles about which motor is the best. The short and sweet answer is - let's talk about the application. More recently a number of papers and articles have appeared that compared each motor's advantages and disadvantages in generic or specific terms. Many times, the methods used to drive and control these motors are not completely described due to the many control schemes available for use. A few articles focus on just the open loop step motor and the closed loop servo motor advantages and disadvantages in a laundry list format. This article is attempting to "drill down" into the reasons why and to describe how it is done.
95 Integrated Hybrid Servo Motors vs. Standard Integrated Servo Motors (December 2018)
Different motor types favor different application areas. No single style has advantages in all application spaces. Direct drive applications favor hybrid servos while high-speed, geared down applications tend to favor the conventional servo motors.
96 Motor Design for Aerospace Applications (June 2019)
Modern aircraft, missiles and space vehicles employ a large number of electric motors and actuators. While the basic design of these motors is in many respects very similar to that of their automotive and industrial counterparts, motors for aerospace applications differ significantly in some areas.
97 Cars with Jet Engines (June 2019)
In the late 1940s, the U.S. auto industry started an exciting experiment and spent decades on it. One result came in '63, when the Turbine was introduced by Chrysler Corp., now a part of Fiat Chrysler Automobiles (FCA). In appearance, the two-door, four-passenger car looked like a regular car, but it wasn’t. Under its sleek shell, the car had a jet engine.
98 Saving Money with High-Efficiency Gearmotors (October 2019)
Standing in a factory or a warehouse, you're bound to notice machinery, whether it's a conveyor system that winds across the floor or large fans that hang from the ceiling. You may even notice automated guided vehicles or autonomous mobile robots carrying parts, driving themselves from one section of the building to another. These machines are good candidates for using high-efficiency gearmotors, especially if they're expected to run for long stretches at a time. If they aren't using high-efficiency gearmotors, then they may be costing more money than they should.
99 Engineering Showcase - Gearmotors (October 2019)
Special advertising section from the October 2019 issue of Gear Technology.
100 Motor Technology Makeover (June 2019)
Efficiency, Size, Space and Mounting Requirements Highlight Customer Requests for No Compromise.
101 Hands-Free Driving in the 1950s (April 2019)
Yes, the headline is correct: Autonomous vehicles are not a new idea. In fact, in the 1950s, handsfree driving so interested General Motors engineers that they designed a concept car for it. And in 1956, at its own auto show, the GM Motorama, the automaker unveiled the car, the Firebird II.
102 Improperly Testing Belt Tension Can Easily Damage Small Motors (February 2019)
Most of us want to just instinctively squeeze a belt between a pair of pulleys to test the belt tension. What is not as instinctive is just how much force such a procedure can put on the shaft -- often significantly past the manufacturer's rated limits for small motors. This can cause damage to both the shaft and the bearings.
103 Insider's Guide to Automate 2019 and Promat (March 2019)
Automate Show Examines the Integration of Robotics, Automation and Machine Vision, while Promat explores the latest in material handling technology.
104 Deep-Sea Microbe Research (April 2019)
Faulhaber motors help seek climate answers in deep-sea trenches
105 How to Select Motors for Hazardous Locations - Baldor Motor Basics Part 10 (February 2018)
Failure to specify the proper motor for use in a hazardous location can have serious consequences - lost production, extensive property damage, and even loss of human life. Selection of the proper motor requires an understanding of Underwriters Laboratories' (UL) and National Electrical Code (NEC) class, group and division designations and the T code letters.
106 Brushless PM-Motors Speed Ahead (June 2014)
There are more brushless PM motors being made every day. These brushless PM motors are smaller in size -- i.e., less than 50 watts in power output found in hard-disk drives, CD and DVD players and many portable medical devices. Servo systems with brushless PM motors ranging from 50 watts to 50 kilowatts are now challenging the larger electric motor applications. A few manufacturers have pushed brushless PM motors above 200 kW.
107 Built for Speed (March 2018)
Japan's Electric Aspark Owl Does 0-to-60 MPH in 1.9 Seconds!
108 Making the Smart Choice in PT Components (April 2018)
The Latest Clutch & Brake Technology Looks at Reliability, Cost and Design Specifications.
109 Electrical Stress and Parasitic Currents in Machine Elements of Drivetrains with Voltage Source Inverters (August 2018)
Modern drivetrains with voltage-source inverters not only offer advantages like, for example, variable speed operation, increased efficiency and higher dynamics, but also an increase in failures caused by induced parasitic currents.
110 Product News (March 2019)
The complete Product News section from the March 2019 issue of Power Transmission Engineering.
111 Product News (March 2017)
The complete Product News section from the March 2017 issue of Power Transmission Engineering.
112 Changing Technologies, Changing Perspectives (February 2017)
A Conversation with Jeff Hemphill, CTO at Schaeffler Group USA Inc about mechatronic solutions and the electric vehicles of tomorrow.
113 IMTS 2016 Booth Preview (August 2016)
A nose-in-the-tent peek at the booths featuring mechanical motion components.
114 Minimum Design Speed Considerations for Sleevoil Bearings for Industrial Fan Applications (September 2016)
Slow speed operation of fan systems within the air handling industry is generally performed due to two reasons: a coast down operation is required for hot (induced draft) fans to cool down before shutdown (often by using a turning gear), and operational efficiency improvements can be achieved during non-peak periods by slow speed operation using a VFD. In either case, when these fans are supported by hydrodynamic bearings, it is the oil film thickness developed from the bearing-shaft interaction that limits the minimum speed that can be maintained without causing premature wear and bearing failure. This paper will present a brief overview of lubrication theory and critical design parameters to achieve slow speed operation.
115 Product News (December 2016)
News about the most recent products to hit the market.
116 Industry News (December 2016)
News from around the industry.
117 Product News (April 2019)
The complete Product News section from the April 2019 issue of Power Transmission Engineering.
118 Industry News (September 2019)
The complete Industry News section from the September 2019 issue of Power Transmission Engineering.
119 Product News (August 2021)
The complete Product News section from the July 2021 issue of Power Transmission Engineering.
120 Industry News (September 2021)
The complete Industry News section from the September 2021 issue of Power Transmission Engineering
121 Product News (October 2021)
The complete Product News section from the October 2021 issue of Power Transmission Engineering.
122 Six Keys to Sustainable Manufacturing (February 2009)
The federal government estimates that manufacturing uses about one third of the energy consumed in the U.S., so manufacturing companies can play an important role in building a sustainable future.
123 Industry News (June 2021)
The complete Industry News section from the June 2021 issue of Power Transmission Engineering
124 An Inside Look at Bell's EDAT System (March 2021)
Bell's Electrically Distributed Anti-Torque (EDAT) is Bell's latest commercial innovation. The EDAT system is composed of four small fans within a tail rotor shroud in an offset two-by-two pattern.
125 Industry News (April 2020)
The complete Industry News section from the April 2020 issue of Power Transmission Engineering.
126 Hannover Messe USA Goes Digital (August 2020)
There would have been an incredible lineup of products and technologies in Chicago in the Hannover Messe USA pavilion at IMTS 2020 -- everything from cobots and smart factory automation solutions to digital twins and mechanical power transmission components. Unfortunately, the planet had other ideas this year and we continue to conduct business on laptops, smartphones and Zoom meetings for the foreseeable future.
127 Electric Bikes - Wired for Fun (August 2020)
There is absolutely no doubt that riding an electric bicycle will not stir up cinematic memories of Marlon Brando (The Wild One) or Steve McQueen (The Great Escape) tearing it up on their hogs. Think more Pee Wee Herman and his Great Adventure.
128 Product News (Spring 2007)
News about upcomming products
129 Industry News (December 2015)
News from around the industry
130 Product News (April 2009)
The complete Product News section from the April 2009 issue of Power Transmission Engineering magazine.
131 Product News (December 2009)
The complete Product News section from the December 2009 issue of Power Transmission Engineering.
132 Development of an Educational Engineering Workshop on Electric Vehicle and Motor Technology (June 2010)
This paper describes the development of an educational program centered on electric motor and electric vehicle technology at the MIT (Massachusetts Institute of Technology) Edgerton Center.
133 Urban Mobility--Reinventing the Wheel (December 2010)
Suggesting a bicycle is environmentally friendly is stating the obvious. But the Copenhagen Wheel, unveiled at the 2009 COP15 United Nations Climate Conference, is taking green technology and cycling in a new direction.
134 Product News (December 2008)
The complete product news section from the December 2008 issue of Power Transmission Engineering.
135 Product News (August 2008)
The complete product news section from the August 2008 issue of Power Transmission Engineering.
136 Product News (February 2009)
The complete Product News section from the February 2009 issue of Power Transmission Engineering.
137 Product News (April 2008)
The complete product news section from the April 2008 issue of Power Transmission Engineering.
138 Product News (June 2008)
The complete product news section from the June 2008 issue of Power Transmission Engineering.
139 Opportunities Amidst Crises (February 2011)
Energy-challenged industries--and countries--can benefit from improved motor design and materials.
140 Product News (December 2012)
The complete Product News section from the December 2012 issue of Power Transmission Engineering.
141 Product News (October 2014)
News about new Products in the industry.
142 Electric Vehicles Need Quieter Gears (October 2014)
For Mark Findlay of UK specialist driveline consultancy Drive System Design, reducing gear noise to suit the low noise levels in an electric vehicle cabin has meant throwing away the rule book.
143 Chariots to Steamboats to E-Fans (October 2014)
Heaven help Mr. Deane were he around today. In our non-stop world of transportation & transport technology, for at least the past decade it is without question the electric car that has drawn most of the attention
144 Product News (June 2015)
News about latest Products in the Industry
145 Product News (August 2014)
The complete Product News section from the August 2014 issue of Power Transmission Engineering
146 Product News (March 2014)
The complete Product News section from the March 2014 issue of Power Transmission Engineering.
147 Industry News (October 2013)
The complete Industry News section from the October 2013 issue of Power Transmission Engineering.
148 Should You Pay a Premium for a Mounted Ball Bearing (December 2013)
Mounted ball bearings are everywhere in industrial applications. They serve critical roles in keeping a manufacturing operation running smoothly and in ensuring that equipment functions properly and reliably. So why might it be advisable to spend significantly more for a dimensionally comparable bearing from one supplier versus another?
149 Product News (February 2014)
The complete Product News section from the February 2014 issue of Power Transmission Engineering
150 Motorsports in Motion (February 2008)
KD-Rig Puts Accelerating Developments International in Limelight
151 Electric Motors: When is it Best to Repair, and When is it Best to Replace (June 2008)
The repair-versus-replace decision is quite complicated, depending upon variables such as rewind cost, severity of the failure, replacement motor purchase price and other factors.
152 The Painful Birth of the DC Electric Motor (June 2012)
Defined in rudimentary terms, an electric motor is a device that uses electricity to create mechanical force. But in 1834, when our story takes place, most people would have trouble understanding the ramifications. That was the year that one of the earliest DC electric motors was invented—by a blacksmith.
153 Electromagnetic Know-How (August 2012)
Finite Element Analysis (FEA) software can be used for a variety of mechanical engineering tasks, including injection molding simulation of plastic parts, analysis of aerospace components, impact and crash analysis of automobiles and the electromagnetic analysis of motors, actuators, transformers and sensors.
154 Cruising with Curiosity (December 2012)
Power Transmission Components from Forest City Gear, Kaydon Bearings and Maxon Motors help power NASA's Curiosity Mars Rover.
155 Brush DC Motor Runs Along (August 2013)
Everything started in 1800 when Volta developed the first DC battery. Faraday used the DC battery to develop the first electric motor. It used brushes to transfer the battery voltage and current to the rotating disk rotor. This was in mid-1831. Thus was born the brush DC motor.
156 Nervy Enterprise and Edgy Engineering: A Cant-Miss Mix (June 2012)
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.
157 Achieving High Electric Motor Efficiency (April 2012)
The use of motor structures which can concentrate magnetic flux allows ferrite PM motors to achieve performance and power densities that approach those of PM motors using rare earth magnets, but without the cost penalties and supply source concerns of rare earth magnets.
158 Motoring Ahead (August 2011)
Synchronous motors controlled by variable speed drives are bringing higher efficiencies to industrial applications.
159 Step Motor Lower-Loss Technology - an Update (October 2011)
The demand for stepping motors with high efficiency and low losses has been increasing right along with the existing focus on high torque. The selection of the most suitable grade and improvement in the fastening of the laminated cores has reduced losses significantly at their peak when compared to conventional stepping motors.
160 New Motor Technology (April 2013)
Novatorque energy efficient motors, Portescap smaller-size brushless DC motors, Pittman customized motors, Kollmorgen stainless steel motors, Crouzet expanded motor series, and a report from IHS on rare earth mineral supply.
161 University Improves Sustainability of HVAC Motors in Platinum LEED Building (April 2012)
A new preventive maintenance program at a leading New England Ivy League university demonstrates how the push for more sustainable "green" building management has led to a growing awareness of a chronic, widespread problem with HVAC motors—electrical bearing damage and failure.
162 Drive and Motor Basics (October 2013)
A discussion of the basics in DC drives, DC motors, AC drives, AC motors and synchronous motors.
163 PT Extras (December 2013)
Video from Maxon Motors, Hannover Messe on our LinkedIn page and the NFPA annual conference on our Facebook page.
164 Motor Appreciation (April 2014)
When I woke up this morning, my house was a comfortable 68°F, despite the fact that overnight temperatures in the Chicago area were close to freezing. I donâ™t often think about the blower motor that helps circulate the warm air from my furnace throughout my house, but today I was grateful for it...
165 The Reluctance Motor Springs Forth (August 2014)
There are three major types of reluctance motors: all three reluctance motors are non-permanent magnet, brushless motors. They are synchronous motors with a non-linear relationship between torque and current. The variable-reluctance step and switched-reluctance motors utilize the principle of magnetic attraction by inducing magnet poles within the soft-iron rotor, and by energizing a set of coils wound around stator teeth resident in the laminated stator. These two reluctance motors must be sequentially excited to achieve continuous, steady-state rotation. The design of all reluctance motors requires finite element analysis (FEA) software.
166 High-Tech Motors Evolving from PM Muck (September 2014)
University lab's motor eliminates pricey rare-earth magnets.
167 Low-Efficiency Motors and Gears Still Prevalent (October 2014)
Electric motor-driven systems are the single largest enduser of electricity, accounting for over 40% of global consumption according to the International Energy Agency.
168 The Step Motor (April 2014)
Step motors come in many sizes and shapes. But they all share one item in common - each step motor type moves in discrete-degree steps. They react to a series of voltage pulses supplied by their basic controller, known as an "indexer." The step motor was the first to accept digital pulses, then move or rotate a prescribed amount without any feedback device. All step motors are position devices without the need to use any feedback devices. They operate primarily in an open-loop control scheme.
169 The Ever-Efficient Motor (April 2014)
This product focus highlights the latest technology in electric motors.
170 Product News (December 2013)
The complete Product News section from the December 2013 issue of Power Transmission Engineering.
171 The Workhorse of Industry: The Induction Motor (December 2013)
A brief overview of the induction motor, including the basics of construction, performance and variable speed drives.
172 Make the Connection (February 2014)
Recently I had a disturbing conversation with a colleague here at the office. During the conversation, it became clear to me that my co-worker -- a really intelligent guy whom I respect a lot -- had no idea how even the most simple electric motor works.
173 Soft Starters vs. Variable Speed - Or Both (June 2011)
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?
174 Microprocessor-Controlled Prosthetic Leg (June 2011)
A new solution has been developed around the use of microprocessor-controlled prostheses. Just like natural limbs, these can react automatically, adapting to the current situation.
175 Lower-Loss Technology for a Stepping Motor (April 2009)
The demand for stepping motors with high efficiency and low losses has been increasing, although the demand had been previously focused on high torque. Also, the selection of the most suitable grade of lamination for improvement in fastening of the laminated cores has reduced losses significantly at their peak, when compared to conventional stepping motors. Lowering the losses of the motor has enabled continuous operation that was previously impossible. An expansion of the stepping motorâ™s usage into applications where another motor has been used for continuous operation and other usesâ”due to the heat generation problemâ”can now be pursued. In addition, these motors are very effective for energy saving. This paper explains the technology used for lowering the iron losses of the stepping motor.
176 Historic Danish Theatre Gets a Facelift (April 2009)
The Royal Danish Theatre has occupied the heart of Copenhagen for centuries and recently upgraded to a new control system featuring Sprint Electric DC drives to extend the lives of the existing motors, keeping replacement costs down. The Swedish stage design and technology company Visual Act retained most of the original motors and mechanics while providing a much-needed facelift to the stage.
177 Honing a Competitive Advantage (December 2009)
Sunnen grows product portfolio with motion control solution from Siemens.
178 Direct Drive Technology and its Impact on the Gearmotor Business (December 2009)
An exploration of direct drive motor trends and examples of design uses for direct drives as replacements for gear drives or belt drives.
179 Packaging Stimulus (April 2009)
Few industries are experiencing change quite as fast as the packaging arena. Lighter-weight containers are being introduced to reduce costs and energy use, packaging is being redesigned to attract consumer attention and manufacturers are using fewer materials in an effort to address environmental concerns.
180 With Electric Motors, Size Indeed Matters (February 2009)
In this paper, Edward Hage, founder of specAmotor.com, an online motor calculation and selection tool, focuses on the overheating of electric motors. Presented here is a calculation method with which the temperature and heat development of a direct current (DC) motor and a brushless motor can be predicted accurately.
181 Motor System Reliability Considerations for Cost-Effective Purchasing Decisions (June 2008)
OEMs can minimize the cost of ownership by using highly efficient motors and recognizing when unreliable motors are driving up the operating costs of their applications.
182 Motor Decisions Do Indeed Matter--Big Time! (June 2008)
CEE/NEMA repair-or-replace campaign saves energy, dollars and downtime.
183 Power With Precision (February 2009)
Can direct drive technology improve your bottom line? Manufacturers relying upon drive systems in their production process have long sought ways to improve gearbox efficiency. While a gearbox-driven system has been the mainstay for manufacturers, it has also been, among other things, the source of frequent breakdowns, expensive line stoppages and increasingly costly maintenance.
184 Data Loggers Gauge Wastewater Plants Motor Efficiency (February 2010)
In keeping with a national push to bring greater energy efficiency to wastewater treatment plants, a Pennsylvania facility used data loggers to analyze motor utilization, a first step toward cutting energy costs and meeting environmental rules.
185 SMMA Spring Management Conference Navigates Recovery (April 2010)
The SMMA â“ Motor and Motion Association is ditching the slickers and galoshes for this yearâ™s Spring Management Conference, themed âœAfter the Storm: Navigating in the New World.â
186 Drive-Based Integrated Safety (February 2011)
While safety functions have been integrated into drives packages for some years now, the current trends are very exciting, from many angles. Today, a full complement of safety functions can be implemented at the front-end of a system design on all types of production machines, including printing, packaging, converting, materials handling and other equipment used throughout American industry.
187 The Green Spin: Baldor Redefines Cooling Tower Performance (February 2011)
The Baldor Reliance RPM AC Cooling Tower Direct Drive Motor is designed exclusively for the cooling tower industry. This motor combines the technologies of the power-dense, laminated frame RPM AC motor with high performance, permanent magnet salient pole rotor designs.
188 Motors Technology Update (April 2011)
The latest in motors technology from leading manufacturers.
189 Exploring All Motor Options (April 2011)
Q&A with Harald Poesch, product marketing manager for servomotors at Siemens Drive Technologies.
190 Development of an Actuator for Ambient to Cryo Application (December 2010)
During the qualification campaign of the NIRSpec (near-infrared spectrometer) instrument mechanism, the actuator could not achieve the expected lifetime that had been extended during the development phase. The initial design could not be adapted to the requested number of revolutions during that phase. Consequently the actuator needed to be modified so that the function of the mechanism would not be endangered or, by extension, the overall function of the NIRSpec instrument. The modification included a change of the overall actuator designâ”internal dimensions, tolerances, materials, lubrication and assembly processâ”while keeping the interface to the mechanism, mass and function.
191 Medical Modifications (December 2010)
Maxon upgrades tissue removal system for Interlace.
192 The Case for Hollow-Shaft Torque Motors (August 2010)
Permanent-magnet, synchronous-torque motors offer significant advantages on high-energy-consuming and high-dynamic applications.
193 Book Review: Design of Permanent-Magnet Brushless Machines (October 2010)
The latest offering by machine design experts J.R. Hendershot and T.J.E. Miller is an 822-page brushless permanent-magnet (PM) machine design book that serves as a worthy follow-up to their 1994 work.
194 A Present State and Future Vision of Motor Drive Technology (December 2010)
One of the driving forces behind the industrial revolution was the inventionâ”more than a century agoâ”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 semiconductorsâ”along with digital controlsâ”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.
195 Made in the USA, Sourced in China (October 2014)
If you read only one article this issue, it should be Norm Parkerâ™s article on the Chinese bearing manufacturing industry. Parker is an engineer with General Motors, a true industry insider who has become a regular contributor to Power Transmission Engineering.
News Items About Ohio Electric Motors
1 Snyder Joins Ohio Electric Motors (July 18, 2014)
Ohio Electric Motors, Inc. recently announced that Randall R. Snyder will be their new, sales and marketing manager. “I am extremel...