September/October 2018

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We Hope You Enjoy(ed) the Show

IMTS 2018 was the biggest ever, no matter how you want to measure it. With 129,415 registrations, the show far surpassed the previous record of 121,764 set twenty years ago, in 1998. There were also more exhibiting companies (2,563) taking up more floor space (1,424,232 sq. ft.) than ever before.

Natural Logo Rhythm

As publishers, we’re constantly reevaluating our brand and our identity. We want our connection with you to remain close and fresh, so that when you see our publication, your reaction is, “Oh, yeah. These are my people. They speak my language.”

Of course, much of that reaction is derived from the content. But some of it is also from the design and how the content is presented. Over time, designs become stale. Fonts, color schemes and visual effects that were once popular become as outdated as bell-bottom pants. (Wait, never mind. I think those are back in style again. Anyway, you get my point.)

Technical Articles

NVH Potential of PM Gears for Electrified Drivetrains

Electrification has already started to have a noticeable impact on the global automotive industry. As a result, the drivetrains of hybrid (HEV) and full electric vehicles (EV) are facing many challenges, like increased requirements for NVH in high speed e-Drives and the need for performance improvements to deal with recuperation requirements. Motivated by the positive validation results of surface densified manual transmission gears which are also applicable for dedicated hybrid transmissions (DHTs) like e-DCTs, GKN engineers have been looking for a more challenging application for PM gears within those areas.

Powder Metal Through the Process Steps

Powder metal (PM) gears normally sell due to the lower cost and their relatively high mechanical performance. The reason behind the lower cost is that most of the machining is omitted due to the net-shape forming process. So how net-shape are powder metal gears? In this article some hard-to-find information about the tolerances through the manufacturing steps will be presented.

First Part Right - Fiction or Reality

This paper analyzes the different influences of the deviations between nominal and actual geometry for a first-cut bevel gear. In each section, the customary tolerances are quantified and the possibilities to reduce them are discussed.

Influence of Different Manufacturing Processes on Properties of Surface-Densified PM Gears

The properties of both shot-peened and cold rolled PM gears are analyzed and compared. To quantify the effect of both manufacturing processes, the tooth root bending fatigue strength will be evaluated and compared to wrought gears.

Control System Techniques—Dampers (Part 2)

Closed-loop control systems can handle a wide range of motions with a wide range of loads if the control system and the mechanics of the system are properly designed for the task. A couple of the more difficult combinations to design for are high inertial mismatches and backlash with hard gearing. The question is not just how to make the system stable but also how to get the desired performance. 

Virtual End-of-Line Test

Tooth contact analysis is an integral part of the gear design process. With the help of these simulation tools, it is possible to calculate the excitation caused by a tooth contact (Ref. 1). Usually, the load-free transmission error or the total transmission error under load is used for this purpose. However, the calculation with the tooth contact analysis ZAKO3D allows only a quasi-static consideration of the excitation. To better evaluate the behavior in the overall system, it is therefore necessary to perform a dynamics simulation. However, the main disadvantage of such dynamics simulations is the much longer computing time compared to quasi-static tooth contact analyses due to the high computational effort.

Feature Articles

Everything-Friendly Lubricants

Lubricant experts are doing more than ever to make their products less toxic and harmful to everything from the environment to the people using them — which comes with plenty of extra benefits for productivity, too!

Chamfering-Deburring Still a Player - Now More than Ever

Chamfering and deburring have been described as "unloved," a "necessary evil" and, in fact - "dead." After all, manual deburring is still common in many shops.

The Evolution of Gear Chamfering

The latest technological solutions help keep chamfering and deburring operations in-line -- often without increasing cycle times.

Deburring - The Underestimated Task

Deburring or chamfering of gear teeth is gaining attention in practical settings. And with a view to make the production sequence as efficient as possible, it is becoming increasingly important to be able to implement the deburring tasks directly on the cutting machine after spiral cutting.

The Future of Power Manufacturing, Warehousing, and Logistics

In recent years, the power engineering manufacturing industry has been undergoing a significant modernization movement, driven by the rapid advancement of robotics, automation, and artificial intelligence. Amazon's recent announcement of its in Shreveport, Louisiana, serves as a prime example of this revolution in action. 

5 Ways to Save Money Through Ultrasonic Analysis

When facilities are designed and built to meet the standards of the day, the plant is as efficient as it will ever be on day one. However, as the plant ages and production demands increase, aging equipment becomes strained leading to inefficiencies and escalating costs.

Revolutionizing Conveyor Belt Technology in Food Processing

With over 20 years’ experience in the food processing industry, Mike Mitchell has filled many roles in his career. Now, as the key accounts manager for Middleby Food Processing brand, MP Equipment, Mitchell has been pivotal in advancing food technology. He understands the demands of frequent, late-night repairs on first generation equipment.

Operational Improvements

Since taking over as CEO of Solve Industrial Motion Group in June 2024, Ernie Lauber has focused on continuous improvement, predictive maintenance and growing the legacy brands within Solve.

Combining brands such as IPTCI, MasterDrive, PTI and TRITAN together with the LMS, SST, SPB-USA and USA Roller product lines, Solve Industrial Motion Group is a provider of high-quality metric and American Standard power transmission components and industrial-grade bearings.

Ask the Expert

Lubrication: Viscosity and Macropitting

A reader asks: Is the ISO VG 320 adequate, or should a higher viscosity grade be used? How can we stop macropitting in gear teeth?

Addendum

Introducing Revolutions

The new series of videos from Gear Technology TV brings you technology insight from leading experts in the gear industry.

Product News

Product News

See the latest gear industry products from Marposs, GWJ Technology, Norton|Saint Gobain, Mitutoyo, C&B Machinery, DMG Mori, Gear Motions and LK Metrology.

Igus Components Reduce Maintenance for Portable Racing Simulator

Greaves 3D Engineering, a British company specializing in precision engineering, has introduced “The Ultimate Drivers Rig,” a state-of-the-art racing car simulator designed for portability and professional performance. This innovative simulator can be folded and stored in a compact road case, allowing for easy transport to racetracks, trade shows, and corporate events. Central to the rig’s design are 45 high-performance components from igus, including self-lubricating linear and drive technologies, cable carriers, and plain bearings, which help reduce maintenance requirements and improve overall reliability.

Industry News

Industry News

Liebherr and Wenzel announce sales and service agreement; MPIF releases new powder metal standard; Gear Motions announces promotions; Profilator opens new factory and more gear industry news.

Events

Calendar

The complete technical calendar from the September/October 2018 issue of Gear Technology.