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Home » Topics » Inspection » Wear

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Fail Better

April 14, 2023
Phillip Olson

This month's issue of Gear Technology covers a subject engineers love to learn about from others but hate to learn about through firsthand experience: gear failure. In a broad sense, all engineering is concerned with failure. Eventually, all parts fail, so engineers need to determine the limits of their design and ensure that it will meet the requirements of the particular application.


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Exact Metrology Exhibits at Coordinate Metrology Society Conference

August 31, 2022

Exact Metrology recently exhibited at the Coordinate Metrology Society Conference (CMSC) with their sister division, OASIS Alignment Services: A Division of In-Place Machining Company. 


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Capture 3D Joins OMIC R&D

August 3, 2022

The Oregon Manufacturing Innovation Center Research and Development (OMIC R&D) recently welcomed Capture 3D, a Zeiss company, as a member of the collaboration, now at 41 members. Headquartered in Santa Ana, California, Capture 3D is a leader in innovative optical 3D metrology solutions, including accurate blue light 3D scanners, precision photogrammetry systems, comprehensive inspection software, and high-tech automated inspection systems.


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Defining the Tooth Flank Temperature in High-Speed Gears

May 19, 2022
Robert Errichello, John B. Amendola, and John B. Amendola III

The objective of this paper is to improve the methodology for determining the tooth flank temperature. Two methods are proposed for assessing scuffing risk when applying AGMA 925 for high-speed gears. Both methods provide similar results.


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Closing the Gap

October 14, 2020
Charles D. Schultz
No Comments
We left the gear tribe arguing over how to solve the problems that were cropping up with the new-fangled double helical or herringbone designs. Fas...
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Grinding Wheel Wear, Dressing, Tip Advance and Work Phase Angle Adjustment after Corrections

January 1, 2020
Are there rules to aid in grinding process optimization?
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A Comparative Study of Polymer Gears Made of Five Materials

November 1, 2019
The wear behavior of polymer gears made of five different materials has been investigated using an existing polymer gear test rig. Step loading tests at a constant speed of 1,000 rpm were performed. Significant differences in failure modes and performance have been observed for the five polymer gear materials for gear engagements of gears, with the same material as each other.
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Repairing Gears

October 4, 2018
Charles D. Schultz
No Comments
Deadlines and budgets do not always allow for “first class” gearbox rebuilds. The challenge for rebuild shops is to find the fastest and most econo...
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Analysis of the Influence of the Working Angles on the Tool Wear in Gear Hobbing

January 1, 2018
A calculation method is developed to estimate tool wear on hobs.
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Optimal Modifications on Helical Gears for Good Load Distribution and Minimal Wear

June 1, 2015
Helical gear teeth are affected by cratering wear — particularly in the regions of low oil film thicknesses, high flank pressures and high sliding speeds. The greatest wear occurs on the pinion — in the area of negative specific sliding. Here the tooth tip radius of the driven gear makes contact with the flank of the driving gear with maximum sliding speed and pressure.
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