PK-M Series sizes 17 and 23 high-torque, hybrid step motors offer step-angle resolutions of 0.9-degrees full step and 0.45-degrees per half step. The motors also maintain holding torques of 22 to 44.4 oz-inches for the size 17 and 54.2 to 187.5 oz-inches for the size 23. The PK-M Series higher-step resolution results in an unloaded step accuracy of 0.05 degrees. Running torques of 20 oz-inches at 2,500 pps are developed for the smallest PK-M model, the PK243M-01BA, and up to 175 oz-inches at 1,100 pps for the largest PK-M family member, the PK268M-03BA.
Oriental Motor USA Corp., 2510 W. 237th St. #102, Torrance, CA 90505, FAX (310) 325-4146.
The Dutch are known for their love of bicycling, and they’ve also long been early adopters of green-energy and smart-city technologies. So it seems fitting that a town in which painter Vincent van Gogh once lived has given him a very Dutch-like tribute -- a bike path lit by a special smart paint in the style of the artist's “Starry Night” painting.
For decades, engineers have worked to combat erosion by developing high-strength alloys, composites, and surface coatings. However, in a new paper, a team at Jilin University in China turned to one of the most deadly animals in the world for inspiration -- the yellow fat-backed scorpion.
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.