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Highly adaptive bearing for light-to-moderate loads in linear motion applications

The MiniRoller Rail from Rollon eliminates the noise, difficult assembly, misalignment, and unnecessary weight typically associated with using linear guides with recirculating ball bearings in lighter-duty aerospace, medical, pharma, life science, and packaging applications. It also offers machine builders exceptional flexibility with a variety of optional materials, surface treatments, and mounting hardware and fasteners, including both metric and inch sizes. The new linear bearing's induction-hardened and machined raceways reduce noise and deliver a long, reliable lifetime.
Learn more.

Pinch valves: Flow control without contamination

Beswick miniature pinch valves are now available for 1/8-in. OD and 1/4-in. OD tubing. The PV series miniature pinch valve is designed to control fluid when it is advantageous to avoid fluid contact with mechanical components and elastomeric seals. Pinch valves achieve fluid control by clamping down on the outside diameter of the tubing in order to limit or stop flow. The PV has a port for pneumatic actuation as well as a manual knurled knob for extra flexibility.
Learn more.
Watch the pinch valve video to learn more of the benefits.

How to select a linear bearing pillow block

When it comes to choosing a pillow block style to help provide a secure foundation for a rotating shaft, the engineers at Lee Linear suggest using something called "P.O.S.T.L.U.D.E.S" as your guide: Precision, Orientation, Speed, Travel, Load, Unknowns, Duty Cycle, Environment, and Safety. Learn all about pillow block types, construction, and applications in this informative blog.
Read the full article.

Timing belts and pulleys calculator

The quick-and-easy Center Distance Designer Calculator is a handy resource that will make designing and ordering parts for mechanical systems using single- or double-sided belt drives much easier, calculating center drive ratios, center distances for a pulley pair, and more. This tool from Stock Drive Products/Sterling Instrument (SDP/SI) will help you get the right pulley and timing belt combination and instantly identify the appropriate part numbers that meet your specifications.
Learn about the Center Distance Designer Calculator.

New air atomizing spray nozzle video

EXAIR's Atomizing Spray Nozzles create a fine liquid mist perfect for washing, coating, cooling, dust control, and more. These nozzles offer an assortment of flow rates and patterns including flat fan, round, and hollow cone patterns, and are highly effective with a wide range of liquids making them a perfect tool for a variety of industries. Combining liquid and compressed air, atomizing nozzles create a fine atomization for superior coverage and can be easily adjusted to fit your application's demands.
See how they work.

Tamper-proof seal screws build in security

ZAGO security/ tamper-proof seal screws are designed with a distinct drive style that requires a specialized tool to unlock, effectively deterring tampering, vandalism, and misuse. What's more, a groove-fit rubber O-ring expands on installation to create an impervious, unbreakable seal. Available in a variety of corrosion-resistant metals, they are reusable and removable for maintenance and repair with proper tooling.
Learn more.

Micro-AM tech makes plastic 3D-printed parts conductive

Horizon Microtech-nologies' new micro-AM technology can help in the elimination of electro-static discharge (ESD) in applications that would benefit from 3D printing by combining precision polymer additive manufacturing and ESD compliancy. Parts can be made with a controllably conductive surface coating and also coated internal channels with multiple bends. In one use, very compact and high-performance end-effectors were created for vacuum pick-and-place devices that were conductive enough to prevent electrostatic discharge.
Learn more.

5-Star Product: Constant-torque position hinge

The RT-50 position hinge from Reell Precision Manufacturing incorporates unique engineering in a compact design to hold the angle of mounted components reliably in any position in small assemblies. The hinge's scaled-down 5-mm size and impressive constant-torque capabilities ideally suit demanding applications with limited footprints in consumer electronics, mobile devices, small appliances, and others. A dual-ended mounting configuration enables a single hinge to be used in place of two. Many other types/sizes available.
Learn more and see all the specs.

Cryogenic deflashing improves molding projects

Nitrofreeze^® Cryogenic Solutions is providing molders and OEM manufacturers that make injection molded, extrusion molded, and compression molded parts with a rapid, consistent, and cost-effective alternative to hand trimming molding flash. Nitrofreeze cryogenic deflashing is an automated, computer-controlled batch process that removes flash from tens to thousands of molded parts all at the same time. This patented process will not change part tolerances or surface finish, is more consistent than hand trimming, and is safe for medical plastics and medical silicones.
Learn more.

ScanCobot: Easy entry into 3D metrology automation

The GOM ScanCobot is a mobile measuring station with a collaborative robot, a motorized rotation table, and powerful software that is smart enough to figure out the optimal positions to scan to get the most comprehensive profile possible on a part. The system provides cleaner, more accurate data than manual scans. Exact Metrology has the ScanCobot technology at their Milwaukee area office. Learn about its impressive capabilities.
Read the full article.

Linear shafts vs. posts vs. rotary shafts: How to choose

According to Carlicia Layosa at MISUMI, "Linear shafts, posts, and rotary shafts are used when you need to control some type of motion, either linear or rotary, or a combination of the two," but do you know the difference between these options and what applications are best for each?
Read this informative MISUMI blog.

Gears and gear racks made from polyamide

Gears and gear racks used for transmitting torque and forces within gearboxes are typically made of hardened steel. For many other uses and applications, gears and racks made from plastic are the better choice. These generally require no lubrication and are lighter, quieter, less expensive, and more resistant to corrosion than metal gears. This is why JW Winco has expanded its range with polyamide gears and racks that can transmit high forces and torques. Spur gears EN 7802 and gear racks EN 7822 are made from strong and long-lasting polyamide and are also available in gray or blue for better visual detectability.
Learn more.

3D Printing: Learn all about GrabCAD Print -- best slicing software

The engineers at TriMech are full of incredibly useful tips when it comes to 3D printing. Learn all about GrabCAD Print, which TriMech calls "one of the most powerful 3D-printing prep tools on the market." Better yet, it's a no-cost resource. Learn about file types and updated capabilities like advanced anchoring and stabilizing, remote monitoring, and even building in collaborative schedule management. You always learn something new from TriMech.
View the video.

Build-to-order knobs and hand hardware

Rogan Corp.'s innovative use of two-shot plastic injection and insert molding has been providing customers with high-quality plastic clamping knobs, levers, and control knobs for almost 90 years. Rogan offers concurrent engineering, product design, and assistance in material selection to ensure customer satisfaction for standard or customized parts, with a focus on cost optimization and on-time delivery. Custom colors, markings, decorative inlays, or engineered materials to meet special requirements, such as adding extra strength or utilizing flame-retardant material, are all offered.
Learn more.

New developments in integrated rupture disk assemblies: Cryogenic equipment and more

Rupture disks are one-time-use membranes designed to activate within milliseconds when a pre-determined differential pressure is achieved. In one use case, they protect cryogenic systems and tanks from overpressurization. OEMs are increasingly turning to integrated rupture disk assemblies with all components combined by the manufacturer, as opposed to loose rupture disk and holder devices that leave much to chance. Learn about the latest developments in rupture disk technology.
Read the full article.

Allison Transmission introduces hydrogen fuel cell vehicle testing

Allison's Vehicle Electrification + Environmental Test Center. [Credit: © Allison Transmission]

 

 

Allison Transmission, a leading designer and manufacturer of conventional, electric hybrid, and fully electric vehicle propulsion solutions, recently announced the availability of hydrogen fuel cell and compressed natural gas (CNG) testing at its Vehicle Electrification + Environmental Test (VE+ET) Center located on the campus of Allison Transmission's global headquarters in Indianapolis.

Opened in 2020, the 60,000-sq-ft VE+ET Center houses a hot soak chamber, a cold soak chamber, and two chassis dyne-equipped environmental chambers capable of simulating a broad range of duty cycles. Environmental conditions from -54 to 125 F, altitudes up to 18,000 ft, as well as grades and other on-road conditions can be simulated within the facility. A recently added thermal feature simulates solar radiant heat to support HVAC testing.

The two testing chambers can accommodate most commercial on-highway, off-highway, and wheeled defense vehicle applications, in addition to automotive passenger vehicles. Testing is applicable for a wide-range of propulsion systems, including conventional powertrains, alternative fuel, electric hybrid, fully electric, and hydrogen fuel cell vehicles.

As the demand increases to test and validate larger battery electric vehicles, Allison has extended the test center's Battery Emulation capability to accommodate above 500 kW with a maximum of 900 V DC. This allows for around-the-clock testing without the need to stop and recharge, resulting in more testing completed in a shorter timeframe. Battery emulators are ideal for battery replacement during test, modified state of charge, and/or any additional DC load on vehicles. In addition, the VE+ET Center offers commercial fast-charging capabilities at 150 kW, furthering development in preparation for tomorrow's fleets.

Running on hydrogen power
As part of Allison's goal to support the development and deployment of alternative fuel vehicles that reduce emissions, the company has completed the installation of two phases of hydrogen capabilities:

• Phase one provides the ability to safely detect and manage hydrogen gas or flames in the test cell. This same system is also capable of detection and management of CNG power plants.
• Phase two includes a low-pressure, constant supply of hydrogen directly fed into the vehicle's fuel cell, providing extended test runs while minimizing downtime for re-fueling.

Allison recently collaborated with one of its OEM partners to complete the successful testing of the first hydrogen fuel cell vehicle at the VE+ET Center. Additional OEMs are scoping fuel cell vehicle testing projects for later this year. The facility now has the capabilities to support external customer test and validation programs for vehicles powered by every major propulsion type, including diesel, gasoline, natural gas, battery electric, and hydrogen fuel cell.

Allison says the facility is the only one of its kind in the Midwest, offering the ability to conduct year-round testing in one centralized location that can replicate the extreme environments to solidify dependable, reliable, repeatable, and secure results. The capabilities of the facility move beyond powertrain innovation, enabling Allison and its partners to bring new and innovative technology and vehicle systems to market faster and more efficiently.

For more information on the Vehicle Electrification + Environmental Test Center, got to allisontransmission.com/veet.

Source: Allison Transmission

Published October 2022

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