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Novatorque energy efficient motors, Portescap smaller-size brushless DC motors, Pittman customized motors, Kollmorgen stainless steel motors, Crouzet expanded motor series, and a report from IHS on rare earth mineral supply.
Gear drives deliver power to industrial
equipment such as bulk material
conveyors, mixers, pumps and paper
mills. The reliability that translates into greater uptime and profitability begins by specifying and selecting the proper drives for these critical applications.
American Bearing Manufacturers Association (ABMA) Standard 9 and ISO 281 give equations for calculating
the basic dynamic radial load rating for ball bearings. These equations are based on a number of assumptions, many
of which are not valid for thin-section bearings. (Thin-section bearings are described in ABMA standard 26.2.)
Nevertheless, many thin-section bearing catalogs report load ratings based on these equations. Kaydon has developed a new method for calculating the dynamic radial load rating for thin-section ball bearings. The new method uses the contact stress and the number of stress-cycles-per-revolution to calculate the capacity. The new numbers are based on five years of actual test results. These equations can also be used to calculate the dynamic radial load rating for four-point contact ball bearings, which are not covered in ABMA standard 9 or ISO 281.
Based on simulation methods and calculation tools developed by the Schaeffler Group and presented in the first part of this paper, three approaches regarding increased efficiency based on rolling bearings are presented.
The first trade show dedicated
specifically to small and community
wind took place in Detroit, Michigan
November 3–5. Denise Bode, American
Wind Energy Association (AWEA) CEO, was pleased with the turnout for the event and the increasing potential
for this segment of the wind energy
market.
Robotics and other advanced automation technology systems are viewed as a looming threat to some in the plant
maintenance field. Although there is
a constant battle for some workers to
remain useful while machines are continuously fulfilling more roles on the plant floor, there are those who in turn have found a better use of their newly freed time.
Robots are everywhere these days—
bots in the factory, bots in space, bots at the airport, bots in the movies and much, much more. But robots in the operating room?