Recent content by Lourenssign

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    Calculating torque on revolving sign

    Hi, The bearings are type 6006, deep groove bearings, the friction was given as 0.015, if that helps. Thank you Mech-Engineer for the advise on wind load, is there a mathematical statement for it, as my motor supplier is very adamant it play a huge roll. Thus we are no at a moto that needs to be...
  2. L

    Calculating torque on revolving sign

    The load is spread over 6 custom wheel carriages, 2,wheels each with a 700kg load capacity on each wheel, they run on a rolled channel (ring), thus i cannot get the info from a spec sheet
  3. L

    Calculating torque on revolving sign

    How do i calculte the friction on the bearings
  4. L

    Calculating torque on revolving sign

    Thanks PF, The windload /force is 1.1kpa? , I am a total idiot when it comes to this, but my motor specialist wants this to recommend the right motor/gearbox Rgds
  5. L

    Calculating torque on revolving sign

    I have a triangular sign, each face is 9000mm long horizontal, 2616mm high vertically, the "turntable /bearing "diameter is 3450 mm, the longest length from the sign edge is 5100mm from the centre shaft, the deadweight of the structure is 3200kg, i want to turn at 0,6 RPM, what torque shoul my...
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