January 14 - We provide flexible world-class gearing for hi-tech applications.
December 10 - Quick Global Sourcing for Bearings & Linear Motion Products
November 26 - U.S. Tsubaki Power Transmission Units & Components Portfolio
November 12 - CHB Belt Drive Housings for Ball and Roller Screw Actuators
Electric Linear Motors
Articles About Electric Linear Motors
Articles are sorted by RELEVANCE. Sort by Date.
1 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.
2 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.
3 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.
4 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.
5 Product News (March 2017)
The complete Product News section from the March 2017 issue of Power Transmission Engineering.
6 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.
7 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.
8 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.
9 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.
10 Industry News (August 2014)
The complete Industry News section from the August 2014 issue of Power Transmission Engineering.
11 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.
12 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.
13 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.
14 Industry News (October 2015)
News From the gear Industry
15 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.
16 Product News (December 2015)
News about latest products
17 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:
18 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 it's also good for your bottom line. Sure, saving electricity lessens the burden on our country's energy infrastructure. But it also saves you money in the long run.
The complete Product News section from the December 2013 issue of Power Transmission Engineering.
20 PT Extras (December 2013)
Video from Maxon Motors, Hannover Messe on our LinkedIn page and the NFPA annual conference on our Facebook page.
21 Drive and Motor Basics (October 2013)
A discussion of the basics in DC drives, DC motors, AC drives, AC motors and synchronous motors.
22 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.
23 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 motors—fractional horsepower to 20-hp—comprise 99% of the motor population but consume only 25% of all generated electricity (Refs. 1,3,10,14).
24 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.
25 Cruising with Curiosity (December 2012)
Power Transmission Components from Forest City Gear, Kaydon Bearings and Maxon Motors help power NASA's Curiosity Mars Rover.
26 How Does An Electric Motor Work (October 2016)
If you're an electrical engineer you know how an electric motor works; if you aren't, it can be extremely confusing. Therefore, here's the simplified explanation (or the "how an electric motor works for dummies" version) of how a four-pole, three-phase AC induction motor works in a car.
27 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.
28 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.
29 Product News (September 2016)
News about recent products in the Industry
30 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 — without any kind of wear or aging — as long as the motor isn't pushed past its capacity. Unfortunately, because this isn'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 — 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 — thus precluding the need to purchase a new one.
31 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.
32 Product News (August 2016)
News about industry products.
33 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 "premium efficiency" motors.
34 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.
35 Made in the USA, Sourced in China (October 2014)
If you read only one article this issue, it should be Norm Parker'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.
36 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.
37 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.
38 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 "small" 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.
39 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.
40 High-Tech Motors Evolving from PM Muck (September 2014)
University lab's motor eliminates pricey rare-earth magnets.
41 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.
42 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 don'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...
43 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.
44 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.
45 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 — including manufacturers, suppliers, users, consultants and universities — played gracious host to a wide array of presenters from an equally diverse range of sources — from academia to the federal government. Like gears, motors are most everywhere, as evidenced by SMMA'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 association's mission: To "serve as the principal voice of the electric motors and drives industry" and to provide a forum to "develop, collect and disseminate technical and management knowledge."
46 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.
47 Servo Motor Performance at Stepper Motor Prices (April 2015)
Enhancing production with — and for — less is the standing order in today'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.
48 Stepper Motor Actuators (June 2015)
How would you compare the efficiency and capabilities of hybrid stepper motor actuators vs. can stack stepper motor actuators?
49 Whats In a Meme (April 2015)
Rosetta Mission mixes with Maxon, Kim K for one unforgettable photo
50 Girls Love Science (April 2015)
Hi. My name is Renee. I'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 ("Make the Connection," February 2014).
51 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 — such as a broken rotor bar — 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.
52 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 Chicago's winter night.
53 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.
54 The Ever-Efficient Motor (April 2014)
This product focus highlights the latest technology in electric motors.
55 Product News (June 2017)
The complete Product News section from the June 2017 issue of Power Transmission Engineering.
56 Gearmotors Pulling, Pushing and Controlling Their Weight (October 2018)
Industrial mainstay adapts to remain relevant in a 4.0 world
57 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.
58 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.
59 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.
60 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.
61 The Clean Cut (August 2018)
JBT Corporation benefits from Kollmorgen Hygienic motor design in food and beverage application.
Elastic housing deformation by MESYS, plus new motors, actuators, gear drives and more.
63 A Mechanical Healthcare Plan (June 2018)
Motor Operation Gets Big Boost from Smart Technology (Here's How to Take Advantage)
64 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.
65 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.
66 Deep-Sea Microbe Research (April 2019)
Faulhaber motors help seek climate answers in deep-sea trenches
67 Engineering Showcase - Gearmotors (October 2019)
Special advertising section from the October 2019 issue of Gear Technology.
68 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
69 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.
70 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.
71 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.
72 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.
73 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.
74 Motor Technology Makeover (June 2019)
Efficiency, Size, Space and Mounting Requirements Highlight Customer Requests for No Compromise.
75 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.
76 Product News (April 2018)
New servo drives, gear pumps, stepper motors and more.
77 Industry News (March 2018)
The complete Industry News section from the March 2018 issue of Power Transmission Engineering.
78 Miniature Motion Solutions (June 2017)
Motor technology thrives in aerospace/defense applications.
79 Baldor Basics: Applications (June 2017)
Fans, blowers and other funny loads are addressend, along with RMS Horsepower loading.
80 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.
81 Six Key Elements of Gearmotor Optimization (August 2017)
How to Ensure Reliable Performance, Increased Efficiency and Lowest Total Cost of Ownership.
82 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.
83 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.
84 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.
85 Baldor Basics: Motors (March 2017)
This issue our Baldor Basics series continues with the topics of motor temperature ratings and metric motors.
The complete Product News section from the September 2017 issue of Power Transmission Engineering.
88 The Reliability of Sewer Robots (September 2017)
Faulhaber Provides Motor Technology for Pipe Renovation Projects
89 Emerging Motor Technologies (February 2018)
Copper's continuing role in energy-efficient motor development.
90 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.
91 Mechanical Motion in Tight Spaces (March 2018)
Framo Morat and Dunkermotoren Produce Drive Systems for Automatic Guided Vehicles.
92 Baldor Motor Basics Part 11 (March 2018)
Explosion-Proof Motors in Division 2 Areas and DC Drive Fundamentals
93 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.
94 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.
95 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.
96 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.
97 Familiar Goals, New Solutions (October 2017)
Gearmotor manufacturers find new ways to push the envelope. (With Sidebar on new alternative to planetary gearboxes)
98 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.
99 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?
100 Built for Speed (March 2018)
Japan's Electric Aspark Owl Does 0-to-60 MPH in 1.9 Seconds!
101 Making the Smart Choice in PT Components (April 2018)
The Latest Clutch & Brake Technology Looks at Reliability, Cost and Design Specifications.
102 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.
103 Product News (March 2019)
104 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.
105 Industry News (December 2016)
News from around the industry.
106 IMTS 2016 Booth Preview (August 2016)
A nose-in-the-tent peek at the booths featuring mechanical motion components.
107 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.
108 Product News (December 2016)
News about the most recent products to hit the market.
109 Product News (April 2019)
The complete Product News section from the April 2019 issue of Power Transmission Engineering.
110 Industry News (September 2019)
The complete Industry News section from the September 2019 issue of Power Transmission Engineering.
111 Product News (June 2012)
112 Selecting and Sizing Ball Screw Drives (October 2012)
The ball screw drive is an assembly that converts rotary motion to linear motion and vice versa. The ball screw drive consists of a ball screw and a ball nut with recirculating ball bearings...
113 Smart Actuators for Off-Highway (February 2013)
Smart actuators bring big benefits to utility and other off-highway vehicles
114 Ball Screws Revisited - Ask the Expert (February 2013)
A reader asks for clarification on last issue's Ask the Expert column about ball screw sizing.
115 Best Practices for Selecting and Sizing Guide Wheels (October 2011)
How to select a guide wheel with the properties best-suited for a given application to create a system that reduces design costs and engineering changes, and lowers warranty, assembly, installation and mounting costs.
116 Product News (October 2010)
The complete Product News section from the October 2010 issue of Power Transmission Engineering.
117 Motion System Management (August 2008)
Companies focus on customization and quality in linear motion
118 Oscillation Welding Protects Pipelines (April 2010)
Ball screw assemblies are key to this patent-pending oilfield corrosion prevention solution.
119 Linear Motion Q&A: Customized Machinery Built with Off-the-Shelf Components (April 2010)
This Q&A session with various experts at Thomson Linear Systems covers linear slides & stages, clutches & brakes, bearings and actuators.
120 Product News (Spring 2007)
News about upcomming products
News from around the industry
123 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.
124 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.
125 Opportunities Amidst Crises (February 2011)
Energy-challenged industries--and countries--can benefit from improved motor design and materials.
The complete Product News section from the April 2009 issue of Power Transmission Engineering magazine.
130 Product News (August 2008)
The complete product news section from the August 2008 issue of Power Transmission Engineering.
132 Industry News (October 2013)
The complete Industry News section from the October 2013 issue of Power Transmission Engineering.
133 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.
134 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
News about latest Products in the Industry
News about new Products in the industry.
The complete Product News section from the August 2014 issue of Power Transmission Engineering
138 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?
139 Product News (February 2014)
The complete Product News section from the February 2014 issue of Power Transmission Engineering
141 Inexpensive Methods to Measure the Performance Characteristics of a Linear Motion Device (December 2013)
This article describes a series of tests that can be performed by the average user, with little experience, and without sophisticated measuring instruments, to quickly determine the most important performance characteristics of linear motion systems.
News from the industry about new products.
143 A Present State and Future Vision of Motor Drive Technology (December 2010)
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.
144 Medical Modifications (December 2010)
Maxon upgrades tissue removal system for Interlace.
145 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 design—internal dimensions, tolerances, materials, lubrication and assembly process—while keeping the interface to the mechanism, mass and function.
146 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.
147 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.
148 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.
149 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.
150 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.
151 SMMA Spring Management Conference Navigates Recovery (April 2010)
The SMMA – Motor and Motion Association is ditching the slickers and galoshes for this year's Spring Management Conference, themed "After the Storm: Navigating in the New World."
152 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.
153 Motors Technology Update (April 2011)
The latest in motors technology from leading manufacturers.
154 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.
155 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.
156 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.
157 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.
158 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.
159 Motoring Ahead (August 2011)
Synchronous motors controlled by variable speed drives are bringing higher efficiencies to industrial applications.
160 Exploring All Motor Options (April 2011)
Q&A with Harald Poesch, product marketing manager for servomotors at Siemens Drive Technologies.
161 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.
The complete Product News section from the February 2009 issue of Power Transmission Engineering.
163 Honing a Competitive Advantage (December 2009)
Sunnen grows product portfolio with motion control solution from Siemens.
164 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.
165 The ABCs of Linear Motion Rolling Guides (December 2018)
Improving System Performance One Application at a Time. PTE recently caught up with IKO, Rollon and THK to breakdown the basics in linear motion rolling guides.
166 Introducing the Ball Screw (December 2018)
The Swiss Army Knife of PT Components.
167 Realizing the High Precision Load Handling Benefits of Rodless Electromechanical Actuators (February 2019)
Electromechanical rodless linear actuators can offer better load handling in smaller spaces than rod-style actuators, but realizing those benefits requires careful attention at the specification level. Whether you are replacing a failed actuator, looking for better performance or building a new application from the ground up, success depends on how precisely you specify application requirements.
168 Reduce Your Linear Motion Assemblies to a Single Component with Motorized Lead Screw Actuators (December 2019)
When it comes to specifying linear motion within a machine, system designers have many options from which to choose. Making the right choice can impact the ease of installation, footprint and cost of operation.
169 Linear Bearing CAD Models and More On the Fly (April 2018)
Here's what one supplier is doing to take advantage of the mobile phone in your pocket.
170 CNC System Upgrades (December 2017)
Automated production of large objects such as auto body prototypes, boat hulls and surfboards traditionally requires computerized numerical control (CNC) systems costing nearly a million dollars. Thomson Cuts Costs and Production Time for Autoscale Inc.
172 INDUSTRY NEWS (March 2015)
News From the Industry
174 In the News: Linear Motion (December 2019)
The following article is a round-up of the latest linear motion product and industry news items featured at www.powertransmission.com and on social media.
175 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.
176 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.
177 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.
178 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 motor's usage into applications where another motor has been used for continuous operation and other uses—due to the heat generation problem—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.
179 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.
180 Motor Decisions Do Indeed Matter--Big Time! (June 2008)
CEE/NEMA repair-or-replace campaign saves energy, dollars and downtime.
181 Motorsports in Motion (February 2008)
KD-Rig Puts Accelerating Developments International in Limelight
182 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.
183 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.
184 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.
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