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Playing with Miniature Bearings High-precision robots, aircraft, flow meters, computers, and medical instruments all use miniature ball bearings, often at extremely high speeds. But operating factors including size, application speed, and functionality often fall prey to the affects of axial and radial play. Knowing the design requirements helps prevent maintenance problems in the future.
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Bearing Upgrade Orientation
Older equipment designs were often "over-designed" and generally allowed for easy upgrades. Today, though, over design adds costs that OEMs strive to avoid. But upgrading plant equipment is still feasible when thinking about replacing bearings to enhance production. Follow assembly and disassembly protocols, lubricate, and inspect regularly to achieve the best service life.
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Gasket Standardization in Chemical Processing
Global efforts have led to standardization in pumps and piping systems in chemical processing. However, today even components used in chemical processes are rapidly facing the same pressures. Nearly 75% of North American chemical processors are initiating gasket standardization, aiming for a single gasket that can be used anywhere for any application.
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Making "Cents" of Sealing Costs
Literally thousands of dollars can be lost without the correct mechanical seal; often the smallest cost of a pump. Temperature, materials running through pipes, machinery downtime, and even mechanical staff training all factor into the ultimate cost of seals. This Fluid Sealing Association article shows that seal costs can be recognized and controlled.
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Hobson and Motzer, Inc.
Precision Metal Stampings and Assemblies
Hobson & Motzer is your single source for quality critical precision metal stampings and assemblies. This anvil is used for medical stapling. The anvil has 138 pockets and is made from 300 series stainless steel. All of the components in this picture are welded together in our laser welding manufacturing cells.
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Danaher Motion
Faster Delivery of Linear Bearings and Shafting
In-stock now for fast shipment throughout the USA are the most popular Thomson linear bearing components and shafting through a new manufacturer's stocking program. Includes cut-to-length and machined 60-Case Shafting; most popular inch and metric "A", Super and SuperSmart bearings, matching pillow blocks and seals.
View all our products...
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Apple Rubber Products
Composite Seals
Apple Rubber Products, Inc. offers custom rubber-bonded to metal, plastic, and filter material O-rings and seals. Services include engineering assistance and QC testing with Class 7 Clean room. Complete capabilities from design to prototype to production all in a dedicated ISO 9001-2000 certified facility.
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Rush Gears Inc.
New Online Gear Design Guide
Rush Gears published a complete design guide that identifies 120,000 pre-engineered English and Western metric gears, gear formulas, horsepower formulas, and hardness conversion charts. Also included are dimensional formulas for spur, helical, worm, and bevel gears. The guide is designed to be a tool for designing new machinery or identifying existing parts.
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Twenty Answers about Constant Force Springs
From "What is a constant force spring?" to their advantages and applications, and a discussion of variable force springs, you'll have your pressing questions answered. Also covered are specifying the load or torque, number of turns needed, minimum fatigue life and space envelope, and even how to have the springs manufactured to a particular application.
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Specifying Springs
We're not talking about when the groundhog sees his shadow, but rather the design formulations that you need to consider when designing or specifying springs. This technical data sheet allows engineers to consider the initial tension, stress correction factors, and number of active coils needed in creating springs to fit the design.
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Designing Ergonomic Hand Tools
Reducing work-related musculoskeletal disorders (WMSDs) often comes down to the design of a hand or power tool. Designing tools that are lightweight, with handles shaped to fit the human hand in materials that allow a grip but reduce vibration is a challenge. Read suggestions that help engineers in creating ergonomically smart tools.
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Non-Mechanical Impact Driver
Releasing a rusted bolt or nut can be a mechanic's nightmare. But a retired Australian mechanical engineer came up with a non-mechanical impact driver — a simple tool comprised of two components that creates the necessary twisting force to loosen even the most stubborn bolt or nut.
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Smalley Steel Ring Company
Reduce Spring Height by 50%
Wave springs can replace conventional coil springs while occupying only half the space and providing the same force and deflection. Lower spring heights reduce the overall assembly size, weight, and cost. Wave springs can be manufactured from .200 in. to 90 in. with No-Tooling-Costs™. Over 2,000 stock springs are available in stainless.
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Orttech, Inc.
Torque Limiters and Slip Clutches
Ortlinghaus multi-plate slipping clutches (torque limiting devices) are permanently engaged by means of spring pressure. They are factory set to transmit a predetermined level of torque. If this amount of torque is exceeded, as in the case of an overload, the friction clutches are designed to slip for a limited period of time.
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Ransohoff
Ransohoff Introduces Two Basket Lean-Jet Rotary Basket Parts Washer
Ransohoff's Lean-Jet RB-2 is an aqueous (wash, rinse, and dry) high performance parts cleaning system that is very compact and reliable, capable of handling individual parts or multiple parts in a basket, and is easy to service. The Lean-Jet RB-2 is an ideal parts cleaning system at an economical price.
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RBC Bearings
Heim Bearings
There is only one "Heim® Joint," — the rod end made only by Heim. Heim Bearings (Division of RBC Bearings) produces a full line of spherical bearings, bushings, and rod ends (metal-to-metal, self lubricating, ball bearing type) for aerospace, industrial, and marine markets. Heim also produces custom-engineered bearing solutions your demanding performance applications. More info...
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Engineering Management Certification International
The Bridge Between Engineering and Management
Get certified in Engineering Management. Take the EMCI certification exam and earn a globally recognized credential for current and future employment. Self-study, online or live classroom instruction available. Learn more.
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Dice
A Better Job Search by Design
DiceEngineering.com offers thousands of quality engineering jobs at top technology and engineering companies. Find jobs in your area of expertise. Search now.
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METALFORM Conference
Stamping, fabricating, and forming is the focus of the 2007 METALFORM Exposition and Conference scheduled March 25-28 at the Donald E. Stephens Convention Center in Rosemont, IL. Topics include stamping and turret presses, and welding and assembly equipment. Complete details of the 25th exposition include registration, an exhibitor list, and conference listing.
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Charting the Future
Dean Kamen is looking to water purification and Stirling engines. Burt Rutan is working on spaceship designs for public transportation. Ray Kurzweil envisions a merger of humans and machines to create "singularity". Read or listen (MP3) to these visionary engineers as they share their concepts and needs for the future of engineering.
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