February 14, 2012 Volume 08 Issue 06

Mechanical News & Products

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Engineer's Toolbox: 9 considerations for specifying a slewing ring bearing

In applications that require a bearing to support a structure while it rotates (e.g., cranes, radar, tank turrets), premature bearing failure can put people and equipment at risk. While slewing ring bearings have proven themselves countless times in such applications, designers must consider many factors when specifying them. According to engineers at Kaydon, the bearing's support structure, mounting (including bolt strength, tensioning, and hole patterns), installation, and even storage are all factors in a bearing's success or failure.
Read the full article.


Engineer's Guide to Low Outgassing Adhesives

Learn all about low outgassing adhesives from the masters of making things stick at Master Bond. Outgassing from adhesives can pose significant challenges -- especially in the aerospace, electronic, and optical industries. "The Engineer's Guide to Low Outgassing Adhesives" ebook covers the ASTM E595 standard, initially developed by NASA, and guides you through the adhesive selection process. No registration required.
Learn more.


How it's made: Precision lead screw assemblies

Discover what makes the integrated lead screw systems from PCB Linear a step above the rest. From CNC manufacturing and sophisticated parts fine-tuning to PTFE coatings, innovative anti-backlash nut development with Constant Force Technology, and high-end motors to top it all off, this presentation is full of useful information about PCB Linear production and technology. We bet you will learn something new.
View the video.


Fastest large-format SLA 3D printer in the world

Built on Formlabs' next-generation Low Force Display print engine, the new Form 4L SLA 3D printer delivers unmatched reliability with a 99% print success rate compared to other SLA 3D printers. These benefits, combined with a build volume nearly 5x the size of Form 4, allow Form 4L users to solve big problems and print smaller parts at high volume. Large-scale prints finished in under six hours.
Learn more.


Adjustable monitor mounts that hold, tilt, and more

AV Monitor Mounts from Southco allow intuitive and ergonomic display positioning, enabling the operator to grab and move the screen without significant effort. These mounts also hold the screen in any position securely and resist unwanted movement when in use. Constant-torque functionality provides an arm that can withstand strong touch forces, vibration, and heavy loads. Lots of options.
Learn more.


Keypad teardown and design insights with Autodesk and Xometry

Take a deep dive into the second revision of the macro keypad developed for Autodesk University's Factory Experience 2024 in this exclusive, on-demand webinar hosted by Xometry's Greg Paulsen and Autodesk Fusion's Jonathan Odom. This presentation features a live teardown of the keypad, showcasing how the design team addressed challenges and elevated the product. No registration required.
Watch this Xometry webinar at your convenience.


Cool Tools: Portable joystick videoscope

The USAVS J-4-1500 Joystick Videoscope from USA Borescopes combines high-performance tech with user-friendly features. This advanced 4-mm-diameter scope is designed to elevate the inspection process for professionals across various industries, including automotive, aerospace, and manufacturing. One of its standout features is the responsive joystick-controlled articulation, which allows users to easily navigate the 1.5-m-long probe in multiple directions to acquire high-res images.
Learn more.


Tube cutting and bending design guide: Xometry

Xometry's no-cost tube design guide offers design tips and tricks for laser-cut tube parts, including: minimums, tolerances, and sizes. The guide also covers important rules for mandrel tube bending, such as tolerancing, distance between bends, bend center line radius, types of bends to avoid, and more. Incredibly handy. If you need parts, Xometry can help with that too. It's easy to get a quote.
Learn more.


SPEE3D develops ultra-corrosion-resistant alloy
-- a game-changer for maritime additive manufacturing

Australian manufacturer SPEE3D has developed two grades of an ultra-corrosion-resistant Nickel Aluminum Bronze alloy that are compatible with its Cold Spray Additive Manufacturing technology. The powder material is a game-changer for maritime OEMs and the U.S. Navy, as it will help with supply chain delays and keep critical maritime systems operational.
Read the full article.


Achieve higher loads with a round wire Wave Spring

Wavo Springs are produced from round-section wire to provide higher loads while maintaining the accurate loading found in wave springs. As an alternative to Belleville Springs, the Wavo provides similar loads but with an accurate, predictable spring rate. Available in carbon and stainless steel from stock, sizes range from 1/2" to 6" diameters. Free samples are also available!
Learn more.


Conveying and guiding: One-stop shop for components

JW Winco has expanded its range of conveying and guiding components with additional practical elements designed for common industrial applications, providing everything needed -- from guides and rails to brackets and feet -- for constructing unmotorized conveyor lines using standard parts.
Read the full article.


Why hybrid bearings are becoming the new industry standard

A combination of steel outer and inner rings with ceramic balls or rollers is giving hybrid bearings unique properties, making them suitable for use in a wide range of modern applications. SKF hybrid bearings make use of silicon nitride (twice as hard as bearing steel) rolling elements and are available as ball bearings, cylindrical roller bearings, and in custom designs. From electric erosion prevention to friction reduction and extended maintenance intervals, learn all about next-gen hybrid bearings.
Read the SKF technical article.


What are carbon composite bellows springs?

The Carbon Composite Bellows Spring (CCBS) from MW Components is a system of carbon fiber elements that combine to work as a high-performance, lightweight, and design-flexible compression spring meant to replace coil springs or metallic Belleville disc springs. A functional spring is made from several individual elements paired and joined to make a stack. The stack spring rate is determined by the number of elements, the base rate of each element, and their series or parallel orientation in the stack. Applications include motorsports, aerospace, and high-performance activities.
Learn more.


Bellows couplings for robotics

Ruland bellows couplings are ideal for precision motion in robotic applications due to their zero-backlash design, high torque and torsional stiffness, and various styles that ensure accurate movement and smooth operation. These lightweight couplings are commonly used in industrial, medical, and autonomous robotic systems requiring high speed and accuracy. They have reduced vibrations at speeds up to 10,000 rpm and can accommodate all forms of misalignment, making them highly versatile for different applications.
Learn more.


Structural adhesive bonding 101

Learn how LORD structural adhesives are eliminating rivets, welds, and mechanical fasteners to enable lower-cost assembly. Listen to Angela Zambanini as she describes Parker LORD's acrylic, epoxy, and urethane adhesives and the best applications for each adhesive category.
View the video.


GE opens first new manufacturing operation in Louisville, KY, in over 50 years

GE Appliances celebrated the official opening of its GeoSpring Hybrid Water Heater manufacturing facility at Appliance Park in Louisville, KY, on Feb. 10 – the first to open there since 1957. The $38 million investment in the new product and a revitalized facility is the first milestone in commitments GE has made since 2009 to invest a total of $1 billion ($800 million in Louisville) and create more than 1,300 new jobs in the U.S. by 2014. The new product and other recent investments at Appliance Park have also created hundreds of highly skilled salaried jobs in fields like engineering, industrial design, and manufacturing.

Lean manufacturing and a more competitive wage structure for new employees led to the selection of Louisville as the production site for the new water heater instead of China, where an earlier version of the product was made. Not only can the new product now be made more competitively in the U.S., the GeoSpring Hybrid Water Heater, developed by the Louisville team, has an enhanced feature set, offers better performance with greater energy savings, and will be more affordable for consumers, according to the company.

The GeoSpring has the distinction of being the first GE Appliances product designed and built using Lean manufacturing principles. The Lean process, which uses a cross-functional team of employees – including hourly manufacturing workers – to design the product and the manufacturing process, will aim to increase the competitiveness of the operation by identifying and removing waste in materials and work effort often found in traditional manufacturing.

State and local governments also supported putting the new GeoSpring in Louisville, with up to $17 million in incentives to design and build the new energy-efficient facility and other investments that the company will make at Appliance Park during the next several years.

About the GeoSpring
The new GE GeoSpring Hybrid Electric Water Heater is designed to provide hot water in the quantities homeowners have come to expect from a 50-gal tank water heater, but uses less than half the energy to produce it. Compared to a conventional 50-gal tank water heater that uses 4,879 kW per year, the new GE GeoSpring Water Heater:

  • Uses less than half of that energy – or about 1,830 kW per year.*
  • Saves approximately $325 per year, less than half the cost of a conventional electric water heater — that's $3,250 in savings in energy costs over a 10-year period based on 10.65 cents per kW.

The GeoSpring Hybrid Water Heater combines energy-saving heat-pump technology with traditional electric heating elements. Hybrid technology absorbs heat in the ambient air and transfers it into the water. Since this requires much less energy than the energy used to generate radiant heat – as used in a conventional electric tank water heater – the GeoSpring Hybrid Electric Water Heater is more economical to operate, according to its maker.

GeoSpring will be available in March at national retailers such as Lowe's and Sears and national plumbing distributors such as Ferguson, as well as many local retailers and distributors. For more information on features and availability visit GEAppliances.com/american-made-water-heater/.

*Based on DOE test procedure and comparison of a 50-gal standard electric tank water heater using 4,879 kW per year vs. the GeoSpring Hybrid Water Heater using 1,830 kW per year.

Source: GE Appliances

Published February 2012

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