External linear actuator is a rotating leadscrew design that incorporates ball bearings and a stainless-steel leadscrew in the motor's rotor. Shaft-to-leadscrew couplers are not needed for the actuator, making it targeted for use in limited-space applications. Available frame sizes include 20-, 26-, 36-, and 46-mm diameters. Step increments include 0.001, 0.002, 0.004, and 0.008 inch per step. The actuator is for medical devices, instrumentation, small machinery, office equipment, and any applications where precise, controllable linear motion is required.
The first Tacoma Narrows Bridge was a Washington State suspension bridge that opened in 1940 and spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7, just four months after it opened.
Noting that we now live in an era of “confusion and ill-conceived stuff,” Ammunition design studio founder Robert Brunner, speaking at Gigaom Roadmap, said that by adding connectivity to everything and its mother, we aren't necessarily doing ourselves any favors, with many ‘things’ just fine in their unconnected state.
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.