June 2019

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June 2019 (Complete Issue PDF)

Feature Articles

Motor Technology Makeover
Efficiency, Size, Space and Mounting Requirements Highlight Customer Requests for No Compromise.

Motor Design for Aerospace Applications
Modern aircraft, missiles and space vehicles employ a large number of electric motors and actuators. While the basic design of these motors is in many respects very similar to that of their automotive and industrial counterparts, motors for aerospace applications differ significantly in some areas.

Chain & Sprocket Systems and Maintenance
Chain and sprocket drives of one form or another have been driving machines and conveying materials for over a thousand years. The chain manufacturing industry has developed numerous types and sizes of drive chains. Although it is a mature form of power transmission, there are still many industrial applications for which drive chain is suited. It is economical, resistant to shock loads, easy to install, has the ability to transmit high torque, operates in hostile environments, and is efficient. Chain and sprocket drives are highly engineered and manufactured within close tolerances.

Advanced Belt Drive Systems
Enhancing Safety, Quality, Delivery and Cost.

Technical Articles

Documentation of Gearbox Reliability - An Upcoming Demand
The proof of the reliability of a gear drive is now an additional requirement. In Europe, the acceptance authorities for wind turbines are requesting a system reliability proof from gearbox manufacturers. The AGMA committee reviewing the AGMA 6006 standard for wind turbines is considering adding a chapter about design for reliability. However, reliability considerations are not new; NASA, for example, was in the 1980s using reliability concepts for gear drives.

Pros and Cons of Different Bearing Lubrication Methods
For a maintenance crew, it is important to know which bearings need re-lubrication and make sure they are lubricating those bearings. The bearings can be lubricated manually or by automatic lubrication systems. This article will review each method and discover its pros and cons.

Departments

Get Ready, Get Set...Show (Publishers Page)
If you are involved in the acquisition of technology (whether your direct role is machine design, maintenance, purchasing or management), trade shows still provide one of the best ways to evaluate options, learn about the latest technology and find solutions to problems.

Product News (Product News)
The complete Product News section from the June 2019 issue of Power Transmission Engineering.

Calendar (Events)
The complete Technical Calendar from the June 2019 issue of Power Transmission Engineering.

Industry News (Industry News)
The complete Industry News section from the June 2019 issue of Power Transmission Engineering.

Cars with Jet Engines (Power Play)
In the late 1940s, the U.S. auto industry started an exciting experiment and spent decades on it. One result came in '63, when the Turbine was introduced by Chrysler Corp., now a part of Fiat Chrysler Automobiles (FCA). In appearance, the two-door, four-passenger car looked like a regular car, but it wasn’t. Under its sleek shell, the car had a jet engine.