PowerAc TMtrapezoidal screws from Nook Industries have centralizing threads that maintain alignment of the thread axis. The screws are manufactured in accordance with ISO standards. "We are finding more customers designing with global sales in mind, so they are asking for metrics," says Rick Christyson, chief engineer at Nook. The company offers eight sizes from 10 to 65 mm. The screws are accurate to within±0.1 mm per 300-mm lead. "The screw's threads are made with a 30ºangle. We make the nuts to match, so there is no wedging or binding. Keeping the tolerances tight also lowers the friction and extends the life of the products," says Christyson. Plastic and bronze nuts are matched with screw capacities. Customers choose trapezoidal screws made from stainless steel for food and medical applications or high-carbon 4140 alloy steel for machine tool, packaging, and other industrial applications. PowerAc screws are compatible with the company's EZZE-MOUNT™bearing supports for 16-, 20-, 26-, 40-, 55-, and 65-mm universal face/foot-mount bearing supports and 16-, 20-, 26-, 40-, and 55-mm flange-mount bearing supports.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
The age of touch could soon come to an end. From smartphones and smartwatches, to home devices, to in-car infotainment systems, touch is no longer the primary user interface. Technology market leaders are driving a migration from touch to voice as a user interface.
Soft starter technology has become a way to mitigate startup stressors by moderating a motor’s voltage supply during the machine start-up phase, slowly ramping it up and effectively adjusting the machine’s load behavior to protect mechanical components.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
If you’re developing a product with lots of sensors and no access to the power grid, then you’ll want to take note of a Design News Continuing Education Center class, “Designing Low Power Systems Using Battery and Energy Harvesting Energy Sources."
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.