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Articles About Precision Gear
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Recent breakthroughs in profile grinding software are helping Anderson Precision Gears and others meet wind power’s insatiable appetite for faster production of large, high-quality gears.
The complete Industry News section from the January/February 2014 issue of Gear Technology.
The complete Product News section from the January/February 2014 issue of Gear Technology.
The complete Product News section from the March/April 2015 issue of Gear Technology.
Look beyond the obvious, and you may well find a better way to machine a part, and serve your customer better. That’s the lesson illustrated in a gear machining application at Allied Specialty Precision Inc. (ASPI), located in Mishawaka, Indiana.
The complete Industry News section from the November/December 2013 issue of Gear Technology.
The complete Product News section from the October 2013 issue of Gear Technology.
When parts you manufacture pass through numerous processes such as deep hole drilling, machining, hobbing and grinding, a CMM is essential when your customers require 100 percent in-process and final inspection.
Industry News from October/November 1984 Gear Technology.
The complete Industry News section from the November/December 2012 issue of Gear Technology.
Thousands of gear industry professionals will converge October 24-27 in Nashville, TN, for Gear Expo 99, the industry's biennial collection of the latest in gear manufacturing technology. With nearly 50,000 square feet of exhibit space sold more than two months in advance of the show, this year's Gear Expo will offer visitors more opportunity for supplier comparison than ever before. As of July 20, 166 suppliers of equipment, tooling, services and precision gear products were scheduled to participate, with as many as 20 additional booths yet to be sold, according to AGMA vice president and Gear Expo show manager Kurt Medert. The largest previous Gear Expo was held in 1997 in Detroit, with 43,100 square feet of exhibit space and 161 exhibitors.
Air compressors are a good example of industrial machinery with components that rotate at very high speeds, up to 80,000 rpm. They are subject to very high rotational forces and often variable loads. Strong, high-precision gears for the power transmission trains that drive the impellers are critical components of machinery operating under such conditions.
Cubic boron nitride (CBN) finishing of carburized gearing has been shown to have certain economic and geometric advantages and, as a result, it has been applied to a wide variety of precision gears in many different applications. In critical applications such as aerospace drive systems, however, any new process must be carefully evaluated before it is used in a production application. Because of the advantages associated with this process, a test program was instituted to evaluate the load capacity of aerospace-quality gears finished by the CBN process as compared to geometrically identical gears finished by conventional grinding processes. This article presents a brief description of the CBN process, its advantages in an aerospace application, and the results of an extensive test program conducted by Boeing Helicopters (BH) aimed at an evaluation of the effects of this process on the scoring, surface durability, and bending fatigue properties of spur gears. In addition, the results of an x-ray diffraction study to determine the surface and subsurface residual stress distributions of both shot-peened and nonshot-peened CBN-ground gears as compared to similar conventionally ground gears are also presented.
Traditional methods of manufacturing precision gears usually employ either hobbing or shaper cutting. Both of these processes rely upon generating the conjugate tooth form by moving the work-piece in a precise relation to the tool. Recently, attention has been given to forming gear teeth in a single step. Advantages to such a process include reduced production time, material savings, and improved performance characteristics. Drawbacks include complicated tool designs, non-uniformity of gears produced throughout the life of the tooling, and lengthy development times.
Precision gears play a vital role in today's economy. Through their application, automobile transmissions are more compact and efficient, ships sail faster, and diesel locomotives haul more freight. Today great emphasis is being placed upon the reduction of noise in all gear applications and, to be quiet, gears must be accurate.
News Items About Precision Gear
1 Precision Parts Acquires Precision Gear (January 4, 2004)
Precision Parts International acquired Precision Gear, a manufacturer of high precision gearing for specialty aviation applications compa... Read News
2 Rexnord Acquires Micro Precision Gear Technology (August 27, 2013)
Rexnord recently announced that it has acquired the assets of Micro Precision Gear Technology Limited (“Micro-Precision”), a ... Read News
3 Micro Precision Gear Technology Increases Machine Capacity (November 28, 2011)
Micro Precision Gear Technology of Hemel Hempstead is bucking the current trend of a flat market for U.K. manufacturing and increasing ca... Read News
4 Micro Precision Gear Utilizes Holroyd Grinder (February 6, 2012)
Holroyd Precision, a division of the Precision Technologies Group, has recently completed a customer satisfaction survey with major custo... Read News
5 International Precision Gear Manufacturer, Gear Technology, Receives High Quality Management Systems Certification (February 27, 2009)
ISO 9001:2000 and AS 9100B:2004 certifications, the highest standards of quality, safety and manufacturing efficiency, have been awarded ... Read News