Gear rack limitations
Gear racks are a popular gear style. They convert rotational motion into linear motion. Simply speaking, a gear rack is a section of a...
Polymer quenchants for steel heat treatment
Polymer quenchants, first introduced in the 1970s, have captured an increasingly large market share of quenchants at the expense of oil quenchants. In a...
Q&A with Kenny Miller
Tell us about Kinematics.
For nearly three decades, Kinematics has delivered customized, robust solutions to customers with mission-critical applications. With a variety of motion-control solutions,...
Microbiological contamination and biostability in polymer quenchants
Biological issues such as bacteria and fungi can be a major issue when using polymer quenchants. Bacteria and fungi float in the air. When...
Q&A with Frank Zerbicki
Avers Machine & Gear recently acquired Fox Tool & Manufacturing. What made this a good fit for both companies?
When the previous owner started looking...
Work in a post-COVID economy
This Tooth Tips column doesn’t deal directly with gears or how they work, but bear with me. What I hope it does is address...
The accuracy of spur gearing
When deciding which spur gear to select for an application, there are several factors to consider. What is the anticipated torque? What is the...
Q&A with Tuan Ton
As gearboxes continue to get smaller, the challenge is to keep them from getting weaker. What is Regal Rexnord doing to ensure small gearboxes...
Determining the minimum cooling rate required for quenchants
In this column, I will illustrate a method to determine if a cooling rate from a cooling curve is adequate to achieve required properties.
Introduction
When...
Q&A with Friedrich Wölfel
What is e-mobility, and how is KAPP NILES working to establish itself as a pioneer in this growing field?
E-mobility refers to the use of...
Calculating quench tank size for continuous furnaces
When measuring the temperature rise of an unheated quench tank, the equation used to determine the size of a quench tank is:
Where Mm is...
‘I created a CAD drawing of my gear. Now build it.’
In the movie “Field of Dreams,” the character Ray Kinsella is told, “if you built it, he will come.” In engineering, there is a...
Gearing in an AI world
What is intelligence, anyway? It is the ability to acquire knowledge and skills and then apply the knowledge and skills to solve complex problems,...
Sizing tanks for batch immersion quenching
In this column, I will demonstrate how to calculate the size of a quench tank used for batch immersion quenching.
Introduction
The size of a batch...
Q&A with Rajendra Singh
What is the instructional team’s background in gear manufacturing and design?
Currently, the instructional team at Ohio State comprises of myself and Professors Ahmet Kahraman,...
Evolution of terminology related to tooth distress
Inspection of gears operating in the field requires the proper use of terms describing tooth distress. Written reports by field engineers on occasion have...
Determining equivalent concentration for polymer quenchants
In this column, I will discuss a method to determine equivalent concentration when selecting alternative quenchants using the Segerberg Hardening Power (HP) for polymer...
A deeper dive into perils of white papers, pseudo-technical articles
In our last Materials Matter column, I covered some of the risks associated with giving too much trust to gear surface finishing white papers...
Heat-resistant alloys used in heat treating
In this column, I will discuss the different types of heat-resistant alloys used in heat treating.
Introduction
Heat-resistant alloys are crucial to heat-treating operations. They are...
Q&A with Chelleigh Cuddy
Atlanta Gear Works recently expanded its support staff by hiring its first human resources specialist, a new position created to meet its expanding HR...
