Accurate thickness, taper, gear blanks, proportions, other specifications necessary for maximum gear performance
Gear Blanks
Bevel gears are almost always produced from shaped blanks. Therefore, more care and attention has to be taken in the selection of the...
Gas vs. electricity
Do you have gas? Every year we encounter at least one OEM or new heat treater looking at heat treating in-house, and we ask...
Powder Metal Gears, Part III
Since the Young’s modulus and Poisson’s number are density-related, it is important to use the PM relevant numbers in the design phase of the...
Bevel gears, pressure angles and their relationship
In this edition of “Tooth Tips,” I’d like to examine straight-tooth bevels, the oldest form of a true bevel gear. It is one of...
Common methods and processes for heat-treating equipment
Over the course of months, I’ve discussed furnace equipment mostly related to the carburizing, hardening, and quenching of gears and other drivetrain components, but...
Q&A with Tom Spedding
Would you give me some background on the company?
We’re in Livonia, MI, located in the greater Detroit area. We’re right in the hub of...
Q&A with Robert Whitehouse
What led you to your current position with Castle Metals?
I’ve been with Castle Metals for nine years now, originally working for them in the...
Powder Metal Gears, Part II
NVH is one of the most difficult areas of gearing approaching black art. Transmission developers have their own standards for testing. Often subjective measurements...
Exploring bevel gears and techniques for producing gears to exact specification
For some hundreds of years angled gearing has been used to transmit power between non-parallel shafts. In those olden days the power sources were...
Nitriding continues to gain market share as a case hardening process
By the time you read this column, the 6th International Quenching and Control of Distortion Conference will have been concluded four weeks prior. Dozens...
Q&A with Rod Jones
What is your background?
I started in the machine tool industry when I was 17 years old in a machine shop in the Detroit area...
Powder Metal Gears, Part I
This will be the first in a series of smaller articles on Powder metal gear technology. Each article will focus around a topic that...
Even environment and location are important to determine application stresses on gears
It was once a simple matter to select a gear reducer from a catalog. In order to allow for the application and the inaccuracy...
Orders increase for pusher furnaces for those planning to employ oil press quenching to...
Several columns ago I said we were receiving indications that there was a renewed interest in pusher furnaces for carburizing … well that sure...
Q&A with Daniel Herring
As the "Heat Treat Doctor" how has your work impacted the industry?
I feel my greatest contribution is having the opportunity to share the technical...
Terry McDonald: Site Safety
We all enjoy the nice warm weather and the pleasures of the outdoors, but summer also brings its own set of safety concerns that...
An increasing demand for minimal backlash has been created by the precision required for...
In the present day a precision reducer's backlash is typically three to six arc minutes, and on an eight-inch pitch diameter that is a...
Before bringing heat-treating in-house, study existing outsource processes so transition is seamless
Your company anticipates increased competition in your market so bringing heat treating in-house is one of your cost control strategies.
First, you identify per part...
Q&A with Michael Menz
Please tell us about your new role with Riley Gear Corporation.
The new roll of Executive Vice President consists of managing the day-to-day operations and...
Terry McDonald: Site Safety
Machine-related injuries or fatalities are at the highest during maintenance, service, repairs or adjustments. One simple way to avoid accidents or deaths is to...
