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.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
Two issues have been the bane of the plastics industry for as long as one can remember: The ban on plastic grocery bags and whether the use of bisphenol A (BPA) in plastics such as polycarbonate and PVC is harmful to humans.
One expects to see outlandish apparel at major global fashion events, but New York Fashion Week may have outdone itself, and set a new bar for Paris and Milan, when it put an Ebola jumpsuit in the spotlight.
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.