These magnetic particle brakes have a hollow shaft, and don't need a precision alignment shaft for installation. They slide on and couple with a roll pin or integral clamp, a torque arm holding the brake's body still. They are used where variable, smooth slip torque is needed, such as in winding systems. Input current controls the unwind tension. Torque comes from magnetizing microscopic stainless steel spheres. A higher electric input makes for a stronger internal magnetic field, which creates higher torque that is independent of slip RPM. Hollow shaft brakes from 0-15 to 220 lb-inches. Larger solid shaft brakes, as well as clutches up to 300 lb-feet with 1,900W heat dissipation are available from stock.
In his keynote address at the RAPID 2015 conference last week, Made In Space CTO Jason Dunn gave an update on how far his company and co-development partner NASA have come in their quest to bring 3D printing to the space station -- and beyond.
On Memorial Day, Americans remember the sacrifices the US armed forces have made, and continue to make, in service to the country. All of us should also consider the developments in technological capabilities and equipment over the years that contribute to the success of our military operations.
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.