Pittman® Series 8690™ brush-commutated DC motors from AMETEK Technical & Industrial Products (Kent, OH) are 26-mm motors for data storage, medical, semiconductor processing, automation, and other high-performance applications. The iron core DC motors incorporate bonded neodymium iron boron magnets, and include 7-slot skewed armatures, resin-impregnated windings, and diamond-turned commutators. The motors are available in lengths of 1.798", 1.923", and 2.173". They provide continuous torque output up to 3.17 oz-in, peak torque to 20 oz-in, and speeds to 9,000 RPM.
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This week's Question: Amazon recently filed a patent for parachute-aided delivery of packages. The proposed idea imagines drones releasing parcels from the sky, deploying parachutes to slow their descent and ensure the valuables inside remain...
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