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  1. JUL74000

    maximum temperature use -304L -316L -316TI -321 and 309

    Hi Best wishes . Health, and happiness. I want to know the maximum temperature use of the following stainless steel : -304L -316L -316TI -321 and 309 For mechanical components or sheets. The mechanical stresses are low. The expansion is not hindered. Some components are welded. Thank you in...
  2. JUL74000

    Critical speed - vertical or horizontal positin

    Hi all, I have to calculate the critical speed of a fan shaft for an oven. Belt driven on a cantilever beam. what is the best formula to calculate the first critical speed for an overhung fan ? I need to define the minimal distance between the bearings. The overhang is large. The centrifugal...
  3. JUL74000

    Bearing design assitance for a fan

    Hi all. I need to do an industrial fan (horizontal or vertical position). The fan is on overhang (end of the shaft). Distance between the first bearing is "L1". The length of the assemblies (fan + 2 bearing + coupling + electric motor) needed to be minimum. Bearings can be oversized. Weight of...

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