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Ft. Smith, AR : Large AC industrial motors are the first and only motors in the industry to meet the American Petroleum Institute’s Specification 547 requirements specifically designed for the petroleum and petrochemical industries.
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Baldor Electric Co. : BRUSHLESS ADJUSTABLE SPEED CONTROLS AND SERVO MOTORS
Ft. Smith, AR :
New series of brushless adjustable speed controls and servo motors is designed to provide customers the advantages and benefits of brushless technology for adjustable speed applications, i.e. less maintenance, quieter operation, and more efficient and higher torques in smaller packages.
Quality Bearings & Components - QBC : New 384-Page "B620" Bearing Catalog/Handbook from QBC Features over 4,978 Standardized Off-The-Shelf Bearings
Garden City Park, NY :
Garden City Park, New York — The process of selecting the right bearing for your application just became easier with the publication by Quality Bearings & Components - QBC of their 384-page "B620" Bearing catalog/handbook which features over 4,978 off-the-shelf bearings of all types.
A highlight of the catalog is a 111-page technical section about bearing design and selection.
Featured are rolling contact bearings, sintered-metal bearings, plus plastic and nonmetallic bearings. Reviewed are
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Case Histories/White Papers and Research |
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Lovejoy® ROSTA® Tensioner - Power Plant’s Driving Force
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| Power has no season. Whether summer heat demands air
conditioning or dusky winter evenings call for extra lights
and electric blankets, consumers use electricity. In a coalfired
power plant, equipment must operate 24 / 7. Coal-fired
power plants utilize multiple coal pulverizers to generate
this electricity. Pulverizing coal results in less emissions and
is more efficient use of fuel. Constellation Energy’s H.A.
Wagner power plant in Baltimore, MD, was experiencing
costly downtime, maintenance and material expenses
associated with V-belts on a coal pulverizer drive system. |
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Circle of Life: Nearly 100–year–old GE Motor powers carousel again
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| After almost a century of operation, inactivity, weather and wear, a 1909 motor from GE Motors is expected to come back to life in the coming months in Nederland, Colorado, a community located 3,000 feet above and 17 miles west of Boulder, Colorado. Originally the main power source of a 1910 carousel, the GE Motor will reprise its significant, yet behind–the–scenes role in bringing sheer joy and exhilaration to children and families who will ride the recently restored carousel in the months and years ahead. |
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Torque Transmission’s Companion PO3 Pulley Helps PermaGreen Supreme Spread The Wealth
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| It was a 15-year-old dilemma that stared right back at Tom
Jessen, daring him as if to say, “Go ahead, keep trying. You’ll never win this one.”
With the help of Torque Transmission and its Companion PO3 Pulley, Jessen, owner of Valparaiso, Ind.-
based PermaGreen Supreme, a manufacturer of professional lawn and turf care equipment, eventually
conquered his nemesis.
After years of searching for the right mechanism to drive a pump on a commercial fertilizer spreader,
Jessen turned to Torque Transmission for the missing component that made his vision of a liquid sprayer
on a granular fertilizer spreader a reality. |
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Torque Arm Design Considerations for Shaft Mounted Speed Reducers
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| In the power transmission industry, shaft mounted speed reducers provide one possible solution to meet the speed
reduction/power generation needs for an application. As the name implies, a Shaft Mounted Speed Reducer (also
known more simply as SMSR) is a speed reducer mounted directly onto, and statically supported by, a driven shaft -
that may be found on a conveyor. Typically, the SMSR incorporates a hollow bore (keyed, Taper-Grip® bushing, etc.) to
facilitate mounting onto the driven shaft. |
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New Linear Ultrasonic Micro Motor for Precision Mechatronic Systems
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| Company: | PI (Physik Instrumente) LP Piezo & Nanopositioning Div. |
| This paper presents a new design for a linear ultrasonic micromotor for precision positioning developed by Physik Instrumente (PI). The stator of the ultrasonic motor consists of a rectangular piezoceramic plate. Two sliders, bonded to a spring which presses them against the stator, move along guides integrated in the stator. These motors are characterized by their extremely simple construction.
Two prototypes of the motors using a 9x4x1.5 mm3 and a 16x8x1.5 mm piezoceramic plate have been designed and tested. |
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Magnetic Alternative to Optical Encoding
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| The unique advantage of magnetic encoder technologies over other encoder technologies comes from the fact that magnetic encoders do not require moving parts such as bearings or seals, the main cause of encoder failure. |
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Variable Speed Drives Critical to Heat Wheels, Which Maintain The RainForest at Cleveland Zoo
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| Company: | ABB Inc. Low Voltage Drives Automation Technologies Div. |
| Behind the scenes, a lot of mechanical engineering goes into creating and maintaining a tropical rainforest near Lake Erie, just 40 miles from the Canadian border. It is a feat accomplished by Cleveland (Ohio) Metroparks, a recreational authority that provides an “emerald necklace” of woodlands, golf courses, hiking trails and other attractions surrounding this Midwestern city -- known as much for its sports teams as its world-class orchestra and Rock ‘n Roll Hall of Fame. Without state-of-the-art HVAC technology, it is doubtful this unique tropical habitat -- located within the Cleveland Metroparks Zoo complex -- could exist; and it continues to benefit from equipment improvements, such as advanced motor and drive design. |
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Ideal Cushioning of Aluminum Air Cylinders Reduces Cycle Times
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| Company: | Bosch Rexroth Corp. Pneumatics Div. |
| Bosch Rexroth Pneumatics has developed the concept
and application of Ideal Cushioning for optimizing air
cylinders to increase productivity. When using the
Rexroth ISO/VDMA pneumatic cylinder line, cushions
can be adjusted “ideally” to achieve reduced cycle times,
reduced noise and vibration, and increased cylinder life.
Ideal Cushioning means that there is no end of stroke
bounce, i.e. the direction of travel of the piston is the
same throughout the entire cushioning sequence, and that
its velocity is exactly zero when it reaches the end of its
travel. |
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Milking the Benefits of Pneumatics
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| Company: | Bosch Rexroth Corp. Pneumatics Div. |
| Manufacturers around the world rely on machinery to rapidly produce quality products on a daily basis. Investing in the right technology and proper equipment is critical to the overall
success of the business by increasing the bottom line. Companies that continually process food and frequently washdown their machines are turning to pneumatics to decrease downtime, lower maintenance costs and, ultimately, increase production. |
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Articles |
Hydraulic power units
V-series hydraulic power units, sized 5 to 10 hp, feature a horizontal design and quiet, variable-displacement piston pump. They are adjustable from 100 to 3000 ...
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positional servomechanism represents the ultimate solution to the motion control problem.
Click to enlarge...
Feedback control, also referred to...
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rolling machines used separate control cards for each of the 13 axes of motion. This called for a large... assembly for electrohydraulic motion
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