Comparison of Tooth Interior Fatigue Fracture Load Capacity to Standardized Gear Failure Modes
Introduction Gears are case hardened to produce residual stresses at the surface — improving wear resistance, bending fatigue, and contact […]
INSPECTION & METROLOGY: The Payoff from Deploying Smart Gear Inspection Systems
A quality-control plan for parallel-axis gear manufacturing requires significant investment in analytical and functional inspection equipment, labor, and production cost. […]
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 […]
Adopting Vision Systems: Technology Geared Toward Cost Savings and Boosting Quality
First-tier gear manufacturers are now embracing machine vision technology to streamline production lines, which, of course, ultimately leads to significant […]
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 […]
The Benefits of Asymmetric Gears
Gear wheels often rotate in only one  direction throughout their entire service lives. This applies particularly in the case of […]
State of the Art in Microstructure and Metallurgy Modeling
Anticipating the microstructure evolution during the manufacturing process has long been a major concern for specific industries such as aerospace. […]
An Experimental Evaluation of the Procedures of the ISO/TR 15144 Technical Report for the Prediction of Micropitting
Recently, ISO 15144 [1] has been approved by ISO as a technical report that presents an analysis procedure, which is […]
Prediction of Airborne Radiated Noise from Lightly Loaded Lubricated Meshing Gear Teeth
Automotive transmission gear noise has received increased attention in recent years. The phenomenon is considered as a major noise source […]
Advantages of Direct Gear Design For Automotive Polymer Gear Drives
Invention of the gear-generating machining process that uses the gear rack shape tooling cutting edge (as shown in Figure 1) […]
An Improved Load-Equalizing Means For a Multi-Flow Gear Train
This paper relates to the load-equalizing capabilities of planetary gearboxes, and more generally, addresses the load-equalizing capabilities of multi-flow gear […]
Gear Tooth Root Stresses of a Very Heavily Loaded Gear Pair
For aerospace applications, there is a high premium on minimizing the mass of all components while meeting operational and safety […]
Optimizing Innovation in Driveline Design Processes
In the driveline industry, innovation can only be achieved when the use of new or novel technologies or methods are […]
Case Study: Circle Gear and Machine Company and Pequea Machine Inc.
In a joint effort to bring manufacturing back to the U.S., also known as reshoring, a relationship was formed between […]
Precision Bevel Gears with Low Tooth Count
Right-angle bevel gears are a particular case of intersected-axis gearing (further Ia-gearing) with an arbitrary value of the shaft angle. […]
Layout of the Gear Micro Geometry
The last phase in sizing a gear pair is to specify the flank line and profile modifications, also known as […]
