MOTION CONTROL: Based on a compact and simple design, the ESL series torque limiters from R+W offer accurate performance at a reasonable cost. Unlike traditional ball-detent torque limiters, the ESL spring loads two series of ball bearings against one another to create a rolling effect at overload. This reduces wear, and at the same time it allows for the clutching interface to serve as the bearing support during overload disengagements; saving space and cost. Since this torque limiter uses specially developed, “digressive spring characteristic,” sensitivity to overload and accuracy of disengagement torque are not compromised. This means that disengagement takes place within 3 milliseconds of overload, and at a value within +/-5 percent of the disengagement torque setting. The basic design mounts by means of a keyway and set screw, though customized mounting attachments are also available.
Major global metropolitan areas are implementing a vast number of technology, energy, transportation, and Internet projects to make the metropolis a friendlier, greener, safer, and more sustainable place to be.
Here’s a look at robots depicted in movies and on TV during the 1950s and 1960s. We tried to collect the classics here, omitting the scores of forgettable B movies such as Santa Claus Conquers the Martians and Dr. Goldfoot and the Bikini Machine. Stay tuned for slideshows of robot stars from later decades.
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.