This issue we take a long, hard look at motor efficiency, and you should, too. After all, electric motors used in industrial settings are the single largest consumer of electricity in the United States. Upgrading your electric motors is not only good for the environment, but it’s
also good for your bottom line. Sure, saving electricity lessens
the burden on our country’s energy infrastructure. But it
also saves you money in the long run.
Is there a gear software package out there that will calculate the design of spur, helical, worm, and planetary gearsets? Also, we would like a program that calculates stresses and material selection. Finally, we would like to have the program calculate bearings loads, too. Thank you for your help.
FEATURE ARTICLES | 2015-09-01 | From Power Transmission Engineering
If only there were some source of endless knowledge, experience
and wisdom to guide you through your gear-related problems.
If only there were some philosopher on a mountaintop
whose sole purpose was to bring enlightenment to your gear noise problems, to unravel the mysteries of profile shift, to provide insight to a critical gear manufacturing problem or to explain the meaning of life (gear life, that is).
Gear Expo 2015 takes place October 20–22 in Detroit. If you haven’t already made plans to attend the show, you might be might be missing out on a great chance to learn more about gears, find new potential suppliers and network with your peers.
rotary-type blowers? Examples: for motor KW; RPM; temperature; pressure production; lifetime; etc.
In other words, how do I choose between belts or couplings?
If you haven’t already done so, you should make plans to attend Gear Expo in September. It’s a unique and important show, and you should take advantage of it.
We are currently experiencing wear on the bull gear on our
converter at the steel plant.
We want to be able to draw the original gear profile to compare
this with the worn tooth before we decide on the next steps.
I have attempted this, but there is a correction factor given and I
am unsure how to apply this. Could someone give advice on this?
Please find attached the PDF’s for the bull gear and the pinion gear.
They are old drawings! The wear is on the wheel.
Helical gear teeth are affected by cratering wear — particularly in the regions of low oil film thicknesses,
high flank pressures and high sliding speeds. The greatest wear occurs on the pinion — in the area of
negative specific sliding. Here the tooth tip radius of the driven gear makes contact with the flank of the
driving gear with maximum sliding speed and pressure.
Since we began publishing in 1984, Gear Technology's mission has been to educate our readers. For 31 years, we've shown you the basics of gear manufacturing as well as the cutting edge. We take our educational mission quite seriously, and we go through steps that most publishers don't have time for or wouldn't consider.
FEATURE ARTICLES | 2015-06-01 | From Power Transmission Engineering
The question is quite broad, as there
are different methods for setting various types of gears and complexity of
gear assemblies, but all gears have a few things in common.
In this special section, our editors have gathered recent news and information related to the heat treatment of gears. Here you’ll find a comprehensive assortment of news and upcoming events that will help you understand the various heat treatment processes available for gears and choose the best option for your projects, whether you heat treat in-house or send your gears to a commercial heat treating provider.
The process of forging metal into shapes possesses
a surprisingly long and storied history.
For example, the method of hot rolling can trace its protracted existence all the way back to an enigmatic Italian polymath named Leonardo da Vinci (you may have heard of him), who reportedly invented the rolling mill one lazy day in the 1400s.
One process for hard finishing gears is generating gear grinding. Due to its high process efficiency, generating gear grinding has replaced other grinding processes such as profile grinding in batch production of small- and middle-sized gears. Yet despite the wide industrial application of generating gear grinding, the process design is based on experience along with time- and cost-intensive trials. The science-based analysis of generating gear grinding demands a high amount of time and effort, and only a few published scientific analyses exist. In this report a thermo-mechanical process model that describes influences on the surface zone in generating gear grinding is introduced.
