Ikona clutch CVT differential continuously variable transmission gear tooth form

Articles About Ikona clutch CVT differential continuously variable transmission gear tooth form


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1 The Ikona Clutch and Differential (October 2008)

This paper describes two devices—a clutch and a differential— which are based on the Ikona continuously variable transmission (CVT).

2 Chasing the Dream (April 2013)

Over the past several weeks, I've had quite an interesting back-and-forth e-mail conversation with John Pellegrino, an engineer, inventor and dreamer whose letter appears on page 8.

3 Am I Wasting My Time (April 2013)

Reader John Pellegrino looks for advice on his pursuit of a positively engaged continuously variable transmission.

4 Planning Ahead (April 2019)

Navigating Clutch/Brake Operation in Harsh Environmental Conditions: Chemicals, saltwater, food particles, heat, dust, and electrical corrosion are just a few of the many issues that can cause clutches and brakes to fail prematurely.

5 Product News (March 2017)

The complete Product News section from the March 2017 issue of Power Transmission Engineering.

6 The Meaning of Life (August 2016)

End users and OEMs frequently specify "lubed-for-life" mounted bearings, thinking the lubed-for-life bearings will deliver the same life — without lubrication — as bearings that currently require periodic lubrication. The truth is it depends on many factors, and only a detailed review of the application and testing will provide a more accurate answer.

7 Industry News (March 2017)

The complete Industry News section from the March 2017 issue of Power Transmission Engineering.

8 10 Years and Counting (December 2017)

Just over 10 years ago, we started publishing Power Transmission Engineering, and I'm proud to say we're still going strong.

9 Whats on Your Menu (October 2017)

With Thanksgiving right around the corner, it's hard not to think of the smorgasbord most of us experience on America's most food-centric holiday. If your family celebrates like mine, then there's always plenty of food—and more importantly—plenty of choices.

10 Gear Expo 2017 Booth Previews (September 2017)

Highlights from some of the gear, gear drive, power transmission component, software, materials and related exhibitors at Gear Expo 2017.

11 Product News (June 2016)

Latest news on products.

12 Product News (April 2016)

Latest news about upcoming products.

13 The Latest Design Technologies For Gear Devices with Great Transmission Ratios (December 2014)

Four types of gear devices with great transmission ratios (simply called great ratio gears or GRGs) are discussed in this paper. They are strain wave gearing devices (SWGs), trochoidal gear reducers (TGRs), hypocyclic gear reducers (HGRs) and James Ferguson-type planetary drives (JFDs). The structures, advantages and basic performances of these four devices are compared. The latest design and strength analysis methods are also introduced. To conclude, the future tendencies of GRGs are predicted.

14 Getting a Piece of that Sweet Coupling Pie (December 2014)

He was out. Nine years ago, Ross Rivard left the coupling industry for the shimmering new world of luxury automotive components at Lacks Enterprises, where he was immediately enveloped by platinum trim systems and chrome composite wheels. It was glitz and glam and as sparkly clean as the fresh-fromthe-dealership cars his products were embellished onto.

15 Forward March! (March 2014)

We're pleased to present the first-ever March issue of Power Transmission Engineering.

16 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.

17 Maximizing Your Power Transmission (Engineering) (February 2015)

Engineers are often challenged with the seemingly impossible task of doing more with less. Customers want more power transmitted in a smaller space, they want more efficient designs, and, of course, they want to spend less money. So engineers are always looking for ways to squeeze the most out of their mechanical systems. They’re constantly working to maximize power density, increase energy efficiency and reduce costs to meet their customers’ needs.

18 Product News (February 2016)

Latest information about upcoming products.

19 Everythings Related (August 2015)

We’ve recently completed a major redesign of the powertransmission. com website. I know what you’re thinking. Big deal, right? Websites are redesigned every day. It’s not really news. You’re right, of course. We’re in the news business, and when companies send us press releases about their newly redesigned websites, our first instinct as editors is to respond the same way. So what. Big deal. Moving on.

20 Transmissions in Transition (June 2015)

Experts gathered at the 9th CTI Symposium to discuss the challenges of reducing noise, improving energy efficiency and meeting the changing demands of the marketplace

21 Force Control Assists in Helicopter Transmission Overhaul (December 2017)

Oil shear brake technology is the key to quick and reliable test stand development.

22 Stable and Streamlined (September 2018)

Gear drives focus on longevity, quality and customization.

23 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.

24 Integrated Motion Control in Packaging Machines Delivers Value (June 2011)

Maximizing packaging machine productivity and performance is imperative to success and is driving OEMs to adopt and invest in the latest technologies that can meet their customers’ challenges. At the forefront of these performance-driven technologies is an integrated control system—or programmable automation controller (PAC)—and latest-generation motion solutions.

25 Gear Materials (April 2017)

A reader wants to know how to figure out the fatigues strength, tooth root tension and other technical values of new, high-performance gear materials.

26 Industry News (February 2016)

Latest news from around the Industry

27 A Manufacturing Mix-Tape (February 2018)

I noticed it during my first assignment in a job shop. Maybe it was the gentle whir of a motor or the scratching sound of a grinding gear, but the factory floor boasted plenty of unique noises and sound effects.

28 Industry News (October 2021)

The complete Industry News section from the October 2021 issue of Power Transmission Engineering

29 Industry News (December 2019)

The complete Industry News section from the December 2019 issue of Power Transmission Engineering.

30 MedAccred Rising to Ubiquity (March 2018)

MedAccred is emulating the Nadcap standard that came before it, and much like its predecessor, is on a sure rise to prominence.

31 A New Geometrically Adaptive Approach for Tooth Contact Analysis of Gear Drives (August 2015)

Tooth contact analysis (TCA) is an important tool directed to the determination of contact patterns, contact paths, and transmission errors in gear drives. In this work, a new general approach that is applicable to any kind of gear geometry is proposed.

32 Answer the Call (October 2020)

About once per year, we make a concerted effort to get you, our readers, to renew your subscriptions to Power Transmission Engineering. Well, it's that time again.

33 Influential Criteria on the Optimization of a Gearbox, with Application to an Automatic Transmission (September 2018)

In the design of an automatic transmission gearbox, the variation of one parameter can result in different system performances due to the strong interdependencies among all components. For given transmission ratios, component lifetimes and safeties, or space restrictions, improvements in efficiency, noise, and weight can be achieved.

34 CTI Symposium Raises the Bar on Transmission Technology (June 2014)

The 8th International CTI Symposium on Automotive Transmissions, HEV and EV Drives took place in Rochester, Michigan from May 12-15. The event kicked off with its popular introductory seminar "Basics and Practice of Automotive Transmissions."

35 Choose the Form (June 2018)

In the 1984 film Ghostbusters, Bill Murray and company were asked by Gozer the Gozerian to "choose the form" of their destructor. It was a no-win scenario for the heroes, because no matter what they chose, they were still going to face death

36 Industry News (October 2018)

The complete Industry News section from the October 2018 issue of Power Transmission Engineering.

37 Your Search Starts Here (December 2018)

This issue, we're pleased to present our annual Buyers Guide. It's our comprehensive directory of suppliers of mechanical components, including gears, bearings, motors, couplings, clutches, brakes, gear drives and more.

38 Automotive Adjustment (April 2019)

The automotive industry is shifting for everyone, bearings manufacturers included. Here's what you need to know to make sure you're shifting with it.

39 Heavy Industry and Smart Technology (February 2019)

Heavy industry. The phrase conjures images of mines and steel mills, of huge caverns underground, of cavern-like factories, of oldline companies operating heavy-duty machines for hightorque work. That's the image of heavy industry. Today, though, there's also another image. It's of an operator walking a steel mill's floor, looking at his smartphone or his tablet.

40 The One-Stop Shop for Automatic, HEV and EV Drives (April 2018)

CTI Symposium USA Examines North American Transmission Market Strategies

41 Considering Energy-Efficient Motors: Don't Forget the Gearbox (February 2013)

The mechanical components of your drive system play a major role in overall system efficiency. Don't cut corners.

42 Making the Smart Choice in PT Components (April 2018)

The Latest Clutch & Brake Technology Looks at Reliability, Cost and Design Specifications.

43 Controlling Backlash in Mammography Systems (April 2017)

Medical imaging equipment, water handling systems, conveyors, robotic systems and rotary and linear actuators are among the many devices that may be fitted with electric friction brakes to hold their loads in place when the power is off or disrupted.

44 Slicing Downtime (March 2016)

An independent cheese packager in central Wisconsin packages millions of pounds of cheese every year. Whether shredded, sliced, crumbled or waxed, each package is designed specifically for a customer’s unique needs. As a “toll processor,” production line speed is critical to productivity as well as profitability.

45 Keeping Production Running (April 2019)

Cement Backer Board Plant Utilizes Oil Shear Clutch Brake

46 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?

47 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.

48 Motoring Ahead (August 2011)

Synchronous motors controlled by variable speed drives are bringing higher efficiencies to industrial applications.

49 Clutches: Declassified (March 2016)

In the world of PT components, the clutch gets absolutely no recognition whatsoever. There are entire magazines dedicated to gears, bearings and motors, but clutches get very little press outside of the automotive industry.

50 Braking the Cycle (August 2015)

Tucked away in the southwest quadrant of the state of Georgia, amid stately pine stands, pecan farms and cotton fields, sits Oak Crest Lumber.

51 Product News (December 2011)

The complete Product News section from the December 2011 issue of Power Transmission Engineering.

52 Blocks (Around the Clock) (August 2011)

Reading Rock manufactures concrete blocks - the kind that were probably used to build the schools that you attended. With employees working three shifts six to seven days a week, they make plenty of them.

53 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.

54 Product News (February 2012)

The complete Product News section from the February 2012 issue of Power Transmission Engineering.

55 Product News (December 2013)

The complete Product News section from the December 2013 issue of Power Transmission Engineering.

56 Product News (March 2015)

New products within the Industry

57 Under Pressure (June 2014)

Wichita Clutch helps drive storm simulator at the University of Florida.

58 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.

59 Bearing Protection Needed if Inverter-Duty Motors Are to Live up to their Name (August 2012)

All major manufacturers of 3-phase AC induction motors offer "inverter-duty" or "inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings--their most vulnerable parts--are too often ignored.

60 Product News (June 2012)

The complete Product News section from the June 2012 issue of Power Transmission Engineering.

61 The Best New Ideas (June 2012)

In the publishing business we thrive on new ideas. We employ creative people who are constantly coming up with new and better ways to serve our readers and website visitors.

62 Compact Loaders for Compact Spaces (February 2012)

Compact loaders are employed where large machines have no access or are over dimensioned. New hydrostatic drives from ZF meet the demanding needs of this market.

63 The Things that Move Us (October 2012)

You may have noticed that the magazine looks different this issue. The new look is part of an overall effort to refine our focus. We wanted to make clear to potential subscribers and advertisers how this magazine is different, why its content is important and where it fits in the marketplace.

64 The New and Improved powertransmission.com (February 2013)

Managing Editor Randy Stott explains the recent updates and improvements to the website.

65 Industry News (February 2013)

The complete Industry News section from the February 2013 issue of Power Transmission Engineering

66 Product News (February 2013)

The complete Product News section from the February 2013 issue of Power Transmission Engineering.

67 Product News (August 2008)

The complete product news section from the August 2008 issue of Power Transmission Engineering.

68 Troubleshooting with Torque Transmission (February 2008)

The issue might be a faulty treadmill at a local gym, the need to update orthopedic surgery equipment or simply a train stuck in neutral at the toy store. Whatever the case may be, viewing e-mails in the marketing department at Torque Transmission is like opening Christmas presents every morning.

69 Better Energy-Efficient Flow Rate Regulation (December 2016)

Implementing a power-on-demand concept based on variable speed drives allows for energy saving in any application that involves pumps or hydraulic systems. And when used in combination with an intelligent wiring and communication system, relevant machine data can also be easily recorded - the basis for comprehensive power management.

70 Variable Speed Pump Drives For Industrial Machinery - System Considerations (February 2015)

The changing landscape of hydraulic drives is leading many fluid power specialists to quickly adapt to using variable speed pump drives. Optimum utilization of these drives requires, in many cases, additional system design considerations.

71 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.

72 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.

73 Fluid Couplings vs VFDs for High Inertia Rotating Driven Loads (September 2017)

As the old adage goes, "There is more than one way to skin a cat." In the early stages of any project, system designers are faced with choices; whether they are designing a new application or retrofitting an old one, they need to determine what is the most efficient, economical and practical way of completing the task at hand. Though there are usually at least two viable means to accomplish the task, the first step is always to review and weigh the merits of each option.

74 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.

75 Monitoring the Health of Plant Machinery (September 2018)

Health monitoring or condition monitoring has been used for many years on machines and in plants where the cost of an outage is high. It allows failures to be anticipated and maintenance or repairs to be scheduled for the least loss of production, as well as avoiding unnecessary periodic maintenance.

76 PTE on a Growth Path (December 2013)

A core part of what we do here is making sure that our readers – the people who design, buy and use mechanical power transmission products – know where to find the suppliers of technology they need.