A new series of RTX precision
planetary gearheads from Sterling Instrument feature high torque design and are offered in standard NEMA sizes
60 and 90. These 36 gearheads are identified as the S9160AMRTX and the S9190AMRTX Series and feature single, double and triple gear stage
configurations, optimized gear geometry, high torsional stiffness, captive,
bearing supported input pinion and they are sealed to extend service life.
Each of the two NEMA sizes is offered
in gear ratios ranging from 4:1 to 700:1 and their maximum input speed is 6500
rpm. Their single stage, double stage and triple stage minimum efficiencies are
95, 90 and 85 percent respectively. Operating temperatures range from -40 to
+121C. The housings are made of stainless steel, with anodized aluminum
mounting flanges. The output shafts are made of stainless steel and the gears
are made of alloy and stainless steel.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
Microchip recently released the 3D TouchPad, the first USB PC Peripheral device that couples 2D multi-touch input with 3D air gesture technology. The company seeks the help of developers to further enhance the capabilities of the technology.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
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.