Determining the reasons for materials-based fatigue failures can be a challenge, but don’t underplay...

In the past 50 years, advances in gear technology have been driven by energy and aerospace, specifically by the gas turbine, jet engine, wind,...

Q&A with Suren Rao Ph.D.

Tell us about your academic background and what brought you to the Gear Research Institute at Penn State. I was raised in India, and my...

Terry McDonald: Site Safety

I hope each and every one of you had a safe, joyous, and meaningful holiday season and were able to enjoy it with friends...

Proper balance is one of the critical keys in designing and manufacturing high-speed gear...

Unbalance is the most common cause of serious vibration in high-speed gear units. When present the vibration results in bearing, tooth, and seal damage....

Q&A with Ken Kiehl

I noticed that you’ve redesigned your Web site and changed the company name. That’s right. Since our parent company is Cincinnati Steel Treating, we were...

Terry McDonald: Site Safety

I read an article recently discussing guns in the workplace. Now, I don’t know about you, but the very idea of such a thing...

This conclusion of a two-part series on Hertzian fatigue modes discusses spalling and macropitting,...

Pits form from wear, electric erosion, chemical attack, thermal damage, or porosity that arises during material casting or processing. Grinding burns always lead to...

Q&A with Bret Viant

Tell us about your background, and how you came to join Lovejoy. I was in the Army, and once I’d gotten out I needed a...

Q&A with Jennifer Cochran

Tell us a little about your background and what led you to join the AGMA. I’d be glad to. I attended George Mason University, where...

Terry McDonald: Site Safety

It occurs to me that in all of the safety columns I have penned for this publication, I have not expressed my thoughts on...

Part 1 of a discussion on Hertzian fatigue modes begins with a discussion of...

Experience has led us to rate gears by calculating their pitting resistance and bending strength. These calculations do not provide for other types of...

Q&A with Mike Smith

Capstan Atlantic has been around for quite awhile, hasn’t it? Yes, it has. It was founded by Don Paulin in the forties, and his son...

Terry McDonald: Site Safety

How consistent is your safety program? Do you hold training and brainstorming meetings that focus on safety? Do you change your signage regularly, and...

Robots held a place in the human imagination long before they were assigned a...

In 1921 the Czech author Karel Kapek wrote a play on the subject of mechanization gone wild titled “R.U.R.,” which stood for “Rossum’s Universal...

Chris Chlon: Buy Laws

Volumes have been written by experts in the field of inventory control, with many tagged as being “high level,” which means that the subject...

Q&A with Ed Weinberg

Tell us about the company and the product lines you represent. CENTRIC International has been in business for about three years, and we’re the...

Q&A with Jason Ray

You’ve been with the company for five years now, how did you come to join it?” I was originally trained as an engineer, and I...

Terry McDonald: Site Safety

Do you put safety first in your workplace? Are you a safety conscious person… and I mean really safety conscious? I don’t know anyone...

Part 2: Don’t compromise a quality gearbox by scrimping on seals and filters

Oil cleanliness is essential for gear unit reliability. To achieve this cleanliness in force-feed lubrication systems filters should be the last piece of equipment...

Part 1: Don’t compromise a quality gearbox by scrimping on seals and filters

The gear unit designer pays careful attention to the housing, gears, bearings, and lubrication, but quite frequently the seals and filters are an afterthought....