Review of Microstructure and Properties of Non-Ferrous Alloys for Worm Gear Application and Advantages of Centrifugally Cast Gears
Worm gears are used for large gear reductions. Gear ratio ranges of 5:1 to 300:1 are typical. Generally, worm gear […]
Case Study: How Advanced Gearbox Testing Drove the Need for the Lost Foam Casting Process
For decades, powertrain test systems incorporated custom test stand gearboxes constructed with fabricated gearbox housings. In some cases, fabricated housings […]
Introducing a New Machine Concept for High-Productive Gear Grinding
The increasing demand for efficiency and noise emission of gears pushes the grinding process to its limits. With the widening […]
The Whirling Process in a Company that Produces Worm Gear Drives
The worm geometry of worm gearboxes, especially the thread profile and the shape of the thread flanks, depends on the […]
Not All Broach Tools Are Created Equal
Broach tools may look alike at first glance, but they don’t always perform the same. Some work the first run […]
Developing an Energy-Efficient Industrial Gear Oil
Gearboxes found in mining and manufacturing sectors encounter a variety of harsh conditions. Heavy loading, longer duty cycles, and high […]
Influence of Contact Conditions on the Onset of Micropitting in Rolling-Sliding Contacts Pertinent to Gear Applications
Micropitting is a type of surface damage that occurs in concentrated, rolling-sliding contacts, such as those between gear teeth, through […]
New Refinements to the Use of AGMA Load Reversal and Reliability Factors
The American Gear Manufacturers Association (AGMA) rating standard, ANSI/AGMA 2101-D04, “Fundamental Rating Factors and Calculation Methods for Involute Spur and […]
Optimizing Gear Macro and Microgeometry To Minimize Whine and Maximize Robustness for a Diesel Engine Application
The desire for engines that provide more torque and power is driving higher loads into the gear train. At the […]
Pitch Factor Analysis for Symmetric and Asymmetric Tooth Gears
In comparison with traditional gear design based on pre-selected, typically standard generating rack parameters and its addendum modification also known […]
Application of Advanced Mesh Analysis To Eliminate Pinion Failures
Through a case study involving pinion failures on plastic extruder drives, this paper covers failure analysis, gear rating review, application […]
Accelerated Testing and Temperature Calculation of Plastic Gears
Plastic gears have been in use since the 1950s, and their popularity has increased significantly in the last few years. […]
Case Study: Abtex Corporation and an Automotive Gear Manufacturer
Since 1980, Abtex Corporation — headquartered in Dresden, New York, the Finger Lakes area of New York State — has […]
Testing and Validation of Powder Metal Gears in a 6-Speed Manual Transmission
A 6-speed manual transmission was redesigned and optimized using powder metal steel as the gear material. The design work was […]
Case Study: Gleason Corporation and Schafer Gear Works
When the operations manager at Schafer Gear Works, Paresh Shah, visited the Gleason booth at Gear Expo 2015, he wasn’t […]
Calculating the Risk of Micropitting Using ISO Technical Report 15144-1:2014 – Validation with Practical Applications
For high-performance gear transmissions, case-carburized and ground gears are used in most cases. International standards have been developed to provide […]
A New Class of Industrial Gear Oil
In 2013, the global lubricant market was just over 40 million tons, comprised of 58-percent automotive lubricants and 42-percent industrial […]
Case Study: Erwin Junker Machinery and Komet of America Inc.
In order to stay competitive in their industries, manufacturers must always be on the lookout for new ways to provide […]
Analysis and Optimization of Asymmetric Epicyclic Gears
The design objective of asymmetric tooth gears is to improve performance of the primary drive flank profiles at the expense […]
Case Study: Tracey Gear, Drake Manufacturing, and Norton Abrasives
The worldwide use of grinding wheels for grinding a thread form into a precision workpiece is a common process. However, […]
