MOTION CONTROL: A new series of right angle EG planetary gearheads from Sterling Instrument (ISO 9001:2000+AS9100B Registered Manufacturer) features low cost, and is offered in four standard NEMA sizes, 17, 23, 34 and 42. These gearheads, identified as the S91..SREG..Series feature the planetary system, high torsional stiffness, case-hardened spiral bevel gears, and are sealed to extend service life. They offer both single and double stage design, and include a precision balanced clamp-on pinion. Woodruff keys #404 and motor mounting hardware kits are supplied. Each of the four NEMA sizes are offered in 13 gear ratios ranging from 3:1 to 100:1. Their maximum input speed is 5000 rpm. Their radial and axial shaft loading is 400 lb. Their single stage and double stage minimum efficiency is 85 and 80 percent respectively. Operating temperatures range from -40 to 225F. The housings are made of steel, gold zinc plated. The right angle housing and mounting flanges are made of aluminum, black anodized. Quotes, online orders, available stock, and 3D CAD Model downloads are available at our new eStore at: www.sdp-si.com/eStore. SDP/SI offers NEMA inline gearheads, NEMA right angle single output gearheads, and NEMA dual output gearheads all in sizes 17, 23, 34 and 42.
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.
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