Powder Metal Gears, Part IX
In Part IV, Macro Design was discussed and a corrugated web was presented. The idea of the corrugated web came […]
A Field Case Study of ‘Whining’ Gear Noise in Diesel Engines
This paper describes the work performed to reduce first order gear mesh vibration, which was the root cause of an […]
The Real Truth Behind Cpk and Ppk Capability and Potential Process Studies
The most common definition of Cpk and Ppk is this: Cpk is the short-term capability of a process, and Ppk […]
Horror Stories of Costing
My pet peeve is seeing companies lose money needlessly in the process of costing and pricing. This happens for four […]
The Real Truth Behind Cpk and Ppk Capability and Potential Process Studies
These are very good questions. This paper will describe what you really need to know about estimating the true potential […]
The Surgeon and the Gear Maker
Delta Gear bought TIFCO Gage & Gear, a maker of master gears, spline gages, aerospace gears, and automotive prototype gears […]
Calculating Inverse of Involute Angle in Microsoft Excel Without Programming
A lot has been written and discussed about how to calculate the inverse of involute angle in technological magazines and […]
Epicyclic Load Sharing Map-Application As a Design Tool
One of the main advantages of planetary transmissions is that the input torque is split into a number of parallel […]
An Algorithm for Robust Gear Modifications Design
The design of gear modifications is one of the key tasks for high performance gears, where high performance may be […]
Understanding and Preventing Surface Distress
In many industrial applications that have lubricated rolling/sliding contacts such as rolling bearings, power density has steadily increased over time […]
International Calculation Method for Micropitting
The first edition of the international calculation method for micropitting, ISO TR 15144-1:2010, was just published last December. It is […]
Applications for Self-Locking Gears
In most gear drives, when driving torque is suddenly reduced as a result of power off, torsional vibration, power outage, […]
Helix Angle and Root Stress
The ISO and AGMA Gear Rating Committees have for several years been comparing the results of different rating methods for […]
Controlling the Process
Gear manufacturers have always embraced the latest technologies, constantly fine-tuning their operations to eliminate glitches and optimize efficiencies. This has […]
Designing Asymmetric Gears
In propulsion gear transmissions, the tooth load on one flank is significantly higher and is applied for longer periods of […]
Recommendations for Reverse Engineering
Reverse engineering is a necessary activity in the modern industrial world. Rather than mount a defense against those who label […]
The Benefits of Bio-Based Lubricants
If your company is interested in increasing factory throughput, reducing tool costs, and improving product quality in a safer environment, […]
Small Package, Big Broaching Results
In a customer-driven pursuit of design concept solutions to make broaching relevant to lean manufacturing, the lower lot sizes associated […]
Cutting Out the Whining
After celebrating the 20th anniversary of the founding of Romax Technology last year, long-time chief engineer Barry James recounts his […]
Programmed to Enter New Markets
As anyone in the gearing world knows, Oerlikon Fairfield Manufacturing is a leading provider of engineered gear and transmission systems […]
