Motion System Design articles from November 2004

Motion System Design archives from November 2004

Check it out.(Web Contents)
November 1, 2004... In 1976 a calculus textbook by H. Jerome Keisler was published, which presents the techniques of calculus in a completely unique way, Based on Abraham Robinson's infinitesimals, the modern infinitesimal approach puts the intuitive ideas of the...

How to grade the election.(In the Loop)
November 1, 2004... Taken from a speech delivered by Sen. Zell Miller, D-Georgia, at the 2004 Republican National Convention: "In the summer of 1940, I was an eight-year-old boy living in a remote Appalachian valley. Our country was not yet at war, but even we...

Divided we fall.(In Response)(Letter to the Editor)
November 1, 2004... I was enjoying the useful information in August's Motion System Design until my reading session was ruined by your In the Loop column. One of the things I like about engineering is that it is more likely based on fact rather than politics....

Truth be told.(In Response)(Letter to the Editor)
November 1, 2004... Thank you for your clear and accurate editorials concerning the way a small group of people are actively moving our country away from what our founders envisioned. I have noticed that strong left-leaning materials are occurring in other...

Pressing a point.(In Response)(Letter to the Editor)
November 1, 2004... I was disappointed by your September editorial. Editorials express opinions, but in the ones I'm used to reading, there's at least some basis given. I read it several times, and aside from citing a New York Times story that proved very little,...

Journalists should do their homework.(In Response)(Letter to the Editor)
November 1, 2004... Well said! The credibility of your September editorial is significant because you did your homework. The lack of journalists doing their homework is their basic problem. Any beginning student of history recognizes that social, moral, political,...

Correction.(In Response)(Correction Notice)
November 1, 2004... Note that Molykote is a division of Dow Corning Corp. (September 2004, Staying Power). More information is available at www.molykote.com. In addition, more information on Nye Lubricant Inc.'s products can be found at www.nyelubricants.com.

Steely encoder handles harsh environments.(What's New)(Admotec Inc.)(Brief Article)
November 1, 2004... Manufacturing engineers at a leading steel plant are using a large-bore magnetic encoder with large, heavy-duty motors to provide high-resolution, speed, and position sensing in the mill's extreme heat and harsh environment. The new encoders,...

Partnership to fight terrorism.(What's New)(Lapp Holding NA)(Brief Article)
November 1, 2004... Lapp Holding NA of Florham Park, N.J., (a member of the worldwide Lapp Group) announces it's a certified member of the C-TPAT Program (CustomsTrade Partnership Against Terrorism). As a member of C-TPAT, the company will implement a customized...

Super sensitive device detects nanometer motion.(What's New)
November 1, 2004... Sandia National Laboratory researchers have created a handheld motion detector a thousand times more sensitive than any known--one that lets the human eye see a motion of 10 nm. According to researcher Dustin Carr, the relatively simple...

Demand for PT equipment on the rise.(What's New)(Power Transmission)(Brief Article)
November 1, 2004... According to a new study from The Freedonia Group Inc., a Cleveland-based industrial market research firm, the U.S. demand for industrial power transmission equipment is forecast to grow 6.1% annually through 2008, up to $3.7 billion. ...

Frozen motion.(Dynetic Systems Co.)
November 1, 2004... More and more motion applications are going into the deep freeze. Computerized railroad crossing gates with northern climates must operate at -40[degrees]C, highflying aircraft can subject motors and associated electronics to -70[degrees]C,...

Bearing isolators.(MSD 101)
November 1, 2004... There is a mechanical alternative to regular rubber bearing seals. Called an isolator, this component keeps contamination out and lubricant in bearing enclosures for non-contact protection. While bearing frequency harmonics and angular...

Optimizing motor technology for spindle applications: options for increasing spindle torque are many, ranging from increasing the number of poles in open-loop asynchronous motors to switching to flux-vector drives. Alternate squirrel cage materials such as copper alloys and ac synchronous motors are also worth considering.(Spindle Motors)
November 1, 2004... It is becoming more and more common to see new machine tools being designed with integral-motor high-speed spindles. That is, the motor is built directly into the spindle itself, making the spindle direct drive. The integral-motor design...

Springing into action: why are spring-set brakes the most common emergency brakes around? They automatically stop drives when electrical power fails or when a safety switch is tripped to protect personnel and equipment.(Emergency Brakes)
November 1, 2004... Because brake-engaging springs immediately jump into action when power is cut, spring-set brakes are especially suitable for backup and protection applications. Widely used for static holding, general load stops, and occasional emergency stops,...

Hypoid and bevel gearing: advanced learning at your desk, at your pace
November 1, 2004... Bevel and hypoid gear teeth characteristically transmit power smoothly, and optimized units exhibit the least contact stress and displacement error. Designers using these curved-tooth gears can benefit from studying tooth contact analyses...

Service & support: Motion System Design talks to industry experts about the importance of service and support.(Design By Objective)(Panel Discussion)
November 1, 2004... Define service and support. What's considered leading edge today? Mahan: In the coupling business, we find that service and support take many forms. We must have product ready to go off-the-shelf or be able to modify our product on an...

Who moved my cheese? High dynamic response drive technology ensures careful and vibration-free handling of fresh cheese.(Field ReportGOAL )
November 1, 2004... In Switzerland, more than 450 different varieties of cheese are produced. The ripening of cheese from the inside to outside is primarily a matter of time and the natural process of curd formation, but it is influenced externally in the maturing...

Elimination round.(Spotlight Belt & Chain Drives)
November 1, 2004... Eliminator high-performance polyurethane belts are designed to run on existing RPP sprockets and idlers, but are said to offer double the service life of RPP belts. FEATURES & BENEFITS * 8-mm pitch size comes in 12, 22, 35, and 60-mm...

High horsepower.(Spotlight Belt & Chain Drives)
November 1, 2004... High-horsepower HTS synchronous pulleys are made to run on high-horsepower RPP profile belts, such as Panther, Blackhawk, and QT Power Chain. Additional synchronous products include High-torque Synchronous (HTS) pulleys and the Timing Pulley....

Wide open.(Spotlight Belt & Chain Drives)
November 1, 2004... Wide urethane timing belts are an alternative to flat belting where accurate positioning or controlled movement is needed. FEATURES & BENEFITS * Up to 900-mm wide * No exposed cords on belt edges * Available in T10 and H...

Strong and flexible.(Spotlight Belt & Chain Drives)
November 1, 2004... Advanced steel tension members give polyurethane timing belts strength with flexibility. FEATURES & BENEFITS * High tooth strength * Maximum power transmission * Improved fatigue resistance * 40% higher bonding strength...

Toil with little oil.(Spotlight Belt & Chain Drives)
November 1, 2004... Lambda chain combines a special oil-impregnated sintered bushing and coated pin for long-term internal lubrication. FEATURES & BENEFITS * Variety of chain include drive, conveyor, corrosion resistant, attachment, and curved *...

Automatic clutches.(New Products)
November 1, 2004... TorQmaster clutches disengage on overload, providing an audible alarm in the process. FEATURES & BENEFITS * Automatically disconnect power source from drivetrain; reconnect only after shaft speed is near zero * Patented...

8-mm drive systems.(New Products)
November 1, 2004... Micro drive family includes precision motors, gearheads, and encoders. FEATURES & BENEFITS * 3, 6, and 8-V motors * No-load speeds to 17,100 rpm * 0.41-m-Nm stall torque * 0.18-W output power * All-metal...

Instrumentation gears.(New Products)
November 1, 2004... A line of specialty and instrumentation gears includes spur gears, segment gears, anti-backlash synchro-gears, beveled gears, worms and worm gears, and special gears made to specifications. FEATURES & BENEFITS * Available in aluminum,...

DeviceNet-based encoders.(New Products)
November 1, 2004... Multi-turn 25-bit absolute encoders come in standard shaft and hollow-shaft styles. FEATURES & BENEFITS * 58-mm diameter (shaft style); 90-mm diameter (hollow-shaft) * High resolution (13 bits per turn plus 12 bits of turn data)...

Micro ac drives.(New Products)
November 1, 2004... S-Series drives simplify ac motor control without sacrificing sophistication. FEATURES & BENEFITS * Motor range: fractional to 5 hp(SE1);fhp to 20 hp (SW1) * 5:1 constant torque V/Hz control * Available in 115, 230, and 460-V...

Planetary gearheads.(New Products)
November 1, 2004... The SP+ Series of planetary gearheads come in seven sizes which replace corresponding SP Series gearheads. FEATURES & BENEFITS * Noise levels down to 64 dBA * Torque: 17 to 750 N-m (nominal); 40 to 1,100 N-m (acceleration) *...

Severe-duty pulper drives.(New Products)
November 1, 2004... A line of severe-duty pulper drives keeps water out with an external shaft slinger, V-ring seal, and tandem, lip seal arrangement at the vertical shaft extension. A side-mounted Airmax water exclusion filter/breather is also provided. ...

Toroidal roller bearings.(New Products)
November 1, 2004... Carb toroidal rollers perform best as non-locating bearings in self-aligning bearing systems for industrial fans. FEATURES & BENEFITS * Can be used with same housings and accessories as other self-aligning bearings * Compensate...

Brushless torque actuators.(New Products)
November 1, 2004... The 4EX BTA Series brushless torque actuator features a maximum 35[degrees] rotary stroke. FEATURES & BENEFITS * Low bounce for good positional accuracy and high-speed operation * High starting and ending torque * Eliminates...

Magnetic shaft motors.(New Products)
November 1, 2004... Tubular linear servomotor drives loads, quietly and precisely, up to 6,000 N. FEATURES & BENEFITS * Solid magnetic shaft * Zero cogging * 6,000N ofthrustwith 14-nm resolution * Controllable speeds from 8 [micro]m/sec to...

Dynamic rod locks.(New Products)
November 1, 2004... Linear motion control device safely brakes and holds pneumatic cylinders and guide rods. FEATURES & BENEFITS * Provides up to 4,000 lb-ft of braking power * Turn-on time (25 msec); turn off (35 msec) * Sized for standard...

Shaft collars.(New Products)
November 1, 2004... A complete line of Nomar shaft collars comes in aluminum, black oxide carbon steel, and stainless steel. FEATURES & BENEFITS * Available in one and two-piece clamp-style designs * Bores from 1/8 in. to 6 in.; 3 to 80 mm *...

PCI-based motion controllers.(New Products)
November 1, 2004... A 64-bit motion control card employs 466-MHz PowerPC processor. FEATURES & BENEFITS * 64-bit precision * 466-KHz speed * Includes MechaWare servo development software * SynqNet compatible MOTION ENGINEERING INC., ...

Shock-absorbing friction rings.(New Products)
November 1, 2004... Ring-Springs absorb and damp high kinetic energy of a moving mass in a relatively small space. FEATURES & BENEFITS * Standard spring configurations from 0.5 to 30-in. diameter with end forces to 1 million lb * Consists of a series...

Super-E Motors.(Media Mart)
November 1, 2004... Baldor Electric Company offers Super-E[R] NEMA Premium[TM] efficiency motors from 1 through 1500 HP in low and medium voltages. TEFC, ODP, WPI and WPII enclosures are available with choice of environmental protection such as severe duty, IEEE...

Zero backlash couplings.(Media Mart)
November 1, 2004... New from Ruland Manufacturing Company, InC. Ruland has just issued a new catalog for their Paradrive[TM] Oldham zero backlash couplings. The Paradrive[TM] motion control coupling is designed to handle parallel misalignment. At the same time the...

Ready-to-go Linear Motion Solutions.(Media Mart)
November 1, 2004... Save engineering time and hassles with Rexroth Linear Modules. The new brochure, Fast Track to Precision Motion, Linear Modules and Cartesian Robots, introduces Rexroth's 12 families of linear actuators for compact, fast, precise, or heavy duty...

Precision positioning stages.(Media Mart)
November 1, 2004... Kohzu, Japan's premiere manufacturer of precision motion instruments now offers its comprehensive line of rotary, linear and swivel-arc stages to the American industrial and scientific community Manual and motorized sub-micron accuracy...

C-Sleeve Linear Way--ML.(Media Mart)
November 1, 2004... C-Sleeve (Capillary Sleeve) is a component part for lubrication originally developed by IKO. This is a porous sintered resin made in the form of a sleeve by sintering line resin powder and impregnating a large amount of lubricant into its...

Linear Motion Catalog Offers Components & Complete Systems.(Media Mart)
November 1, 2004... Over 400 products and systems are showcased, including precision case-hardened and ground steel shafts, aluminum support rails, shaft support blocks and shaft rail assemblies, roller bearing pillow blocks/carriage plates, as well as complete...

Spiral Retaining Rings.(Media Mart)
November 1, 2004... The new Smalley Steel Ring Company Retaining Ring Catalog is now available. Smalley has over 4500 rings in stock, sizes from 1/4" to 16". Special designs are available with No-Tooling-Charges[TM] with sizes from .200" to 84"; available in...

Slow It. Stop It. Park It.(Media Mart)
November 1, 2004... If it moves, we can help you stop it. Carlisle will design a brake or friction solution to help you control motion. We've got over 50 years experience in developing brakes and friction materials for major OEMs with applications ranging from...

Mechanical caliper brakes.(Media Mart)
November 1, 2004... New catalog lists specifications for mechanical caliper brakes available from Ausco Products Inc. for applications in lawn and garden tractors, snowmobiles, ATVs, trailers, and small construction and agricultural vehicles. Products include...

Multi-Disc Brake Selection Guide.(Media Mart)
November 1, 2004... This easy-to-use 28 page selection guide contains drawings, specifications and detailed information about the latest in heavy-duty brake technology, and includes Ausco's new generation wet and dry multi-disc brakes The catalog also provides an...

CD Features Linear Motion Products.(Media Mart)
November 1, 2004... The new Linear Motion Products CD from Bosch Rexroth is a one-stop resource for Rexroth's complete range of linear motion products including Ball Rail[R] Systems, Precision Ball Screw Assemblies, Bushings and Linear Modules Electronic file...

Metric Reali-Slim[R] Thin-Section Bearings.(Media Mart)
November 1, 2004... New catalog lists over 50 different configurations of metric Reali-Slim bearings. The series includes 8, 13, and 22 mm cross-sections ranging in bore sizes from 20 to 360 mm. To support varying load scenarios, the bearings are available in...

Hydraulic caliper brakes.(Media Mart)
November 1, 2004... New catalog lists specifications for heavy-duty hydraulic caliper brakes available from Ausco Products Inc. for application in all types of trailers, agricultural vehicles, off-road vehicles, construction and industrial equipment Products...

Brake Technology.(Media Mart)
November 1, 2004... Brochure presents a variety of high tech multi-disc, ball ramp, and caliper brakes manufactured by Ausco. It summarizes the company's commitment to slaying on the leading edge of technology and meeting the needs of our customers, often by...

Backlash-Free Solutions.(Media Mart)
November 1, 2004... GERWAH Drive Components offers a complete line of GERWAH[R] Zero Backlash Servo Coupling and PETER[R] Keyless Shaft/Hub Locking Devices, including Bellow, Miniature and Servo Insert Couplings, Mechanical and Magnetic Torque Limiters, Locking...

Elgo Magnetic Linear Encoders.(Media Mart)
November 1, 2004... Magnetic-Resistive touchless technology for use in harsh environments. Unaffected by dirt, dust, water, oil, electrical noise or vibration. Applications include: woodworking, saws, metal shears, and metal bending equipment. Sensors are IP65 or...

Linear voice coil actuators.(Linear Corner)
November 1, 2004... A compact linear voice coil actuator lets users apply force directly in the linear direction without a mechanical conversion device, such as a ballscrew or gearbox. FEATURES & BENEFITS * 2.72 in. in diameter, 1.06 in. long *...

Compact linear actuators.(Linear Corner)
November 1, 2004... A 5-in.-frame linear GSX Series actuator comes with T-LAM, a highly efficient segmented motor stator design. FEATURES & BENEFITS * Position feedback from resolvers, incremental or absolute encoders, or internally mounted linear...