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  1. hauptmann

    Force of a 3-6 Ton Trailer on a hook to a bus?

    PedroRB, All the forces are in pounds. The hitch will be rated at a weight representing the maximum allowable towable weight, 12,000 lb for your case. I do not know of any site with this standard available. We have the three volume set of SAE standards which covers just about everything you...
  2. hauptmann

    Force of a 3-6 Ton Trailer on a hook to a bus?

    Hi, The following equations are from SAE standard J684, regarding testing of the receiver tube, which ties into your beam. 1. V = .47R + 480 L = .47R + 480 2. L = -(.23R + 1530) V = .15R 3. L = .23R + 1530 V = .15R 4. T = .20R + 500 Where V is the vertical force, positive in...
  3. hauptmann

    Bend allowance formula for stainless steel

    Hi, I am looking for a formula that will calculate the bend allowance for stainless steel, types 304 & 409, so we can accurately lay out the flat pattern for our desired bend detail. We are using brake presses with a V-die for the bottom die and a radius punch for the top. Typical material...
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