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I need some advice on what specifications of extension cord I need. I am not familiar with some of the specs that are displayed on a product website. I need a retractable cord reel (max 30 ft), that will be connected to an electric hoist. The hoist puts out 0.8 HP, 10 amps @ low volts, 120V. I...

My issue with finding a product to fit the job is the fact that many hoists do not fit all of these specs. Many of them come close or fit multiple of the criteria, but don't fit all of them. It also needs to be portable. I will have it on a set of tracks to lift things along the length of a...

Link to any products that fit the criteria above?

I am looking for a mechanism to lift an assembly vertically about 5 feet. The assembly that it will lift is approximately 100 lbs. I can't find any hoists online that fit my situation, or any linear actuators either. The specifications that I am looking for in a hoist are: Battery Powered 5-ft...

I am looking to calculate normal and shear stresses within an assembly I made using Inventor. I need to calculate stresses based on assumed loadings, and I was not sure how to do that. We learned in school to use shear stress = VQ/It + Tc/J and normal stress = P/A + Mc/I, with correct definition...