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The Raso 200 Dynamic has been developed to offer all the characteristics of a gear shaving machine with a competitive price.
The International Manufacturing Technology Show has come a long way from the National Machine Tool Buildersâ€™ Exposition fi rst held in 1927.
Publisher Michael Goldstein urges gear manufacturers to come to IMTS 2006.
Booth previews in the Gear Pavilion and beyond.
Preview of Gear Expo, with information on AGMA's fall technical meeting and the city of Detroit.
Booth Listings for Gear Expo 2005 in Detroit.
If you read the press clippings (even our own), and listen to the comments of many of the major exhibitors, you'll hear that Gear Expo 2005 was a resounding success.
Itâ€™s that even-numbered-year time-of-the-year again. The International Manufacturing Technology Show, IMTS 2008, is right around the corner. This 27th installment of the biennial trade show is focusing on connecting global technology.
Is economic relief on the way? This was the general consensus coming out of Indianapolis after Gear Expo 2009 closed its doors in September. Though the numbers were slightly downâ€”2,539 exhibitors and attendees compared to 2,992 in 2007â€”it appeared to be steady as she goes at the gear industryâ€™s biennial main event, good news considering the state of the gear industry since Gear Expo 2007 in Detroit.
The following letters were written in response to the Publisher's Page editorial, "Is Gear Expo Worth It?" which appeared in the November/December 2005 issue.
One of the best ways to learn the ISO 6336 gear rating system is to recalculate the capacity of a few existing designs and to compare the ISO 6336 calculated capacity to your experience with those designs and to other rating methods. For these articles, I'll assume that you have a copy of ISO 6336, you have chosen a design for which you have manufacturing drawings and an existing gear capacity calculation according to AGMA 2001 or another method. I'll also assume that you have converted dimensions, loads, etc. into the SI system of measurement.
This is the third article in a series exploring the new ISO 6336 gear rating standard and its methods of calculation. The opinions expressed herein are htose of the author as an individual. They do not represent the opinions of any organization of which he is a member.
A best practice in gear design is to limit the amount of backlash to a minimum value needed to accommodate manufacturing tolerances, misalignments, and deflections, in order to prevent the non-driving side of the teeth to make contact and rattle. Industry standards, such as ANSI/AGMA 2002 and DIN3967, provide reference values of minimum backlash to be used in the gear design. However, increased customers' expectations in vehicle noise eduction have pushed backlash and allowable manufacturing tolerances to even lower limits. This is especially true in the truck market, where engines are quieter because they run at lower speeds to improve fuel economy, but they quite often run at high torsional vibration levels. Furthermore, gear and shaft arrangements in truck transmissions have become more complex due to increased number of speeds and to improve efficiency. Determining the minimum amount of backlash is quite a challenge. This paper presents an investigation of minimum backlash values of helical gear teeth applied to a light-duty pickup truck transmission. An analytical model was developed to calculate backlash limits of each gear pair when not transmitting load, and thus susceptible to generate rattle noise, through different transmission power paths. A statistical approach (Monte Carlo) was used since a significant number of factors affect backlash, such as tooth thickness variation; center distance variation; lead; runout and pitch variations; bearing clearances; spline clearances; and shaft deflections and misalignments. Analytical results identified the critical gear pair, and power path, which was confirmed experimentally on a transmission. The approach presented in this paper can be useful to design gear pairs with a minimum amount of backlash, to prevent double flank contact and to help reduce rattle noise to lowest levels.
A discussion of ISO and AGMA standards for gears, shafts and bearings, and the art of designing a gearbox that meets your requirements.
I have a query (regarding) calculated gear life values. I would like to understand for what % of gear failures the calculated life is valid? Is it 1-in-100 (1% failure, 99% reliability) or 1-in-one-thousand (0.1% failure)?
A reader asks: We are currently revising our gear standards and tolerances, and a few problems with the new standard AGMA 2002-C16 have arisen. Firstly, the way to calculate the tooth thickness tolerance seems to need a "manufacturing profile shift coefficient" that isn't specified in the standard; neither is another standard referred to for this coefficient. This tolerance on tooth thickness is needed later to calculate the span width as well as the pin diameter. Furthermore, there seems to be no tolerancing on the major and minor diameters of a gear.
There are many different gear rating methods in use today, and they can give substantially different results for any given gearset. This paper will make it easy to understand the choices and the impact the choices have on gearbox design. Eight standards are included - AGMA 2001; AGMA 6011; AGMA 6013; ISO 6336; API 613; API 617; API 672; and API 677. (Click HERE for the Appendix to this article).
Lines at McCormick Place's Starbucks concession stand will probably be a little longer at IMTS 2006, but the show's organizers won't be complaining.
Readers respond to last issue's Publisher's Page, in which Michael Goldstein asked, "Is Gear Expo Worth It?"
Gear flank breakage can be observed on edge zone-hardened gears. It occurs, for example, on bevel gears for water turbines, on spur gears for wind energy converters and on single- and double-helical gears for other industrial applications.
This special advertising section features some of the premier gear-related exhibitors at IMTS 2004.
Where were you? We were hoping to see you here at Gear Expo. We were surprised that you didn't make it. Anyway, we had a really good show, along with more than a hundred other leading companies in the gear industry who exhibited this year.
Tom Lang liked what he saw in the Gear Generation Pavilion at IMTS 2004. Standing in his booth, Kapp Technologiesâ€™ vice president/general manager talked with many attendees during the show and afterward said: â€śWe had an increase of both quality and quantity of visitors.â€ť
Special advertising section featuring gear industry exhibitors.
Sure, Gear Expo undoubtedly has a ton to offer attendees in education, research and networking alone, but what really draws the crowd in are the physical products and technology on display from exhibitors. Otherwise it would just be another technical meeting or social receptionâ€”and AGMA could save a few bucks on space to say the least.
Gear Expo floor map and alphabetical listing of exhibitors.
Details about the Solutions Center, SME and AGMA special events at the show.
Thereâ€™s a bustle of activity as exhibitors prepare for Americaâ€™s most significant manufacturing trade show. The red carpets are ready, the lights are being tested, and the crowds are gathering with anticipation. Amid the excitement, Gear Technology has managed to sneak under the usherâ€™s ropes to provide you with this advance look at some of the gear-related products and technologies that will be featured at IMTS 2004.
EMO 2007, September 17-22 at the Hannover Fairgrounds in Hannover, Germany.
Pack your bags for a fun-filled week in Chicago at IMTS 2004 with booth after booth of products and services for gear manufacturers, as well as a technical conference and a student summit.
AGMA has started to replace its 2000-A88 standard for gear accuracy with a new series of documents based largely on ISO standards. The first of the replacement AGMA standards have been published with the remainder coming in about a year. After serving as a default accuracy specification for U.S. commerce in gear products for several decades, the material in AGMA 2000-A88 is now considered outdated and in need of comprehensive revision.
Like many businesses in this economic cycle, the IMTS marketing team is forced to look for clever ways to make a profit.
Map of the show and booth listings.
"Eighty percent of success is showing up" -- Woody Allen
In 2005, Gear Expo debuted its first Solutions Center, a forum that features short exhibitor presentations on gear-related topics. This year, AGMA says the Solutions Center will return with a slightly different format.
[special advertising section]
A reader asks: We are currently revising our gear standards and tolerances and a few questions with the new standard AGMA 2002-C16 have risen. Firstly, the way to calculate the tooth thickness tolerance seems to need a "manufacturing profile shift coefficient" that isn't specified in the standard; neither is another standard referred to for this coefficient. This tolerance on tooth thickness is needed later to calculate the span width as well as the pin diameter. Furthermore, there seems to be no tolerancing on the major and minor diameters of a gear.
News Items About Raso 200
1 Sicmat Releases Raso 200 Dynamic Shaving Machine (November 10, 2011)
The Raso 200 Dynamic has been developed to offer all the characteristics of a gear shaving machine with a competitive price. With a footp... Read News