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.
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
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.