Tooth Tips

Gear Expo 2015 Recap

Most of you know that the gear production machines today are much more capable and productive than those of even 10 years ago. However,...

Recycling and Reusing

Unfortunately, every company makes scrap parts, and many of these parts are kept long after all MRB (Material Review Board) efforts to sell the...

Streamlining Processes

In the gear manufacturing world, there are many ways to design and make gears. In the quest to compete, many companies are not satisfied...

Making Time to Work on Your Business

I’ve been involved in manufacturing since I was in high school when I was working part time at my family’s gear business. Since then,...

How To Find Qualified Employees

Wouldn’t it be great if when you needed to hire some employees, you put an advertisement in the paper and 100 qualified candidates lined...

Buying Used Equipment: Do’s and Don’ts

For those of you who didn’t attend the recent American Gear Manufacturers Association (AGMA) annual meeting, you missed a great opportunity to network and...

Protecting Critical Infrastructure

Information is the most valuable commodity any company has. Whether it is held in a persons mind, a cabinet, or a computer, the information...

Looking at a Print

Gears are hard to make. They come in all shapes and sizes and are made out of a variety of materials. Our customers dream...

Dealing with Parts Rejection

You got the call or the email, or maybe the box just showed up. One of your customers rejected some parts. The box winds...

Executing a Quality Product

As a former owner of a mid-sized gear manufacturing facility, I understand the pressures that owners and their staffs endure to satisfy their customers....

Preliminary Results of Testing of Low-Tooth-Count Bevel Gears of a Novel Design, Part III

For the manufacturing purpose, a simplified approach can be used for the development of the CAD models of the gear and the pinion in...

Preliminary Results of Testing of Low-Tooth-Count Bevel Gears of a Novel Design, Part II

In the proposed approach, the tooth flanks of the gear, G, and the pinion, P, are generated by means of a desirable line of...

Preliminary Results of Testing of Low-Tooth-Count Bevel Gears of a Novel Design, Part I

In a general sense, LTC bevel gears feature the start-of-active-profile cone angle, ϒl, smaller than the base cone angle, ϒb, of the gear.  For...

Tool Coatings and Dry Cutting

There has been a movement in recent years to dispense with the use of coolants in gear cutting. This has been normal practice in...

The Pressed Blank: A Closer Look

Carbide Carbide is the basis for most cutting tools used today in non-gear cutting applications. It has been in use approximately 50 years. It cannot...

High-Speed Steel

To be effective in cutting a gear, a cutting tool material must have a combination of the following qualities: • Durability: The ability to withstand—to...

Controlling Profile, Lead, and Spacing

This column marks the end of a three-part discussion on control of the three basic elements: profile, lead, and spacing. Figure 1 depicts three...

Accuracy of Profile, Lead, and Spacing

Noise The primary cause of gear noise is the number of teeth in the gear and the contact ratio of the given set. These are...

Modifications in Pre-Finished Gears

Profile: These modifications are made to accommodate the characteristics of the finishing process. (Figure 1a) Chamfer: The Chamfer is meant to protect the tip of...

Proper Spur and Helical Gear Inspection

In last month's Tooth Tips, we studied finished and pre-finished gears, along with their profiles. Let's move on to some more definitions useful in...
X