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Recent content by Adrian77

  1. Adrian77

    SPLIT MUFF COUPLING

    Hello All, I am calculating a split muff coupling for a round shaft fitted with 3 bolts on each side. I need to calculate the pressure on the shaft surface in order to calculate the maximum torque to be transmitted (with a fricton coeffcient). I know the bolt load, but I am not sure about the...
  2. Adrian77

    Friction concentric rotating cylinders

    Hi biginch, Thanks for your comment but I have already done that. I expect higher torque due to the boundary layer. I guess this cannot be calculated like a normal surface in free flow.
  3. Adrian77

    Friction concentric rotating cylinders

    I forgot to say that there is sea water in between.
  4. Adrian77

    Friction concentric rotating cylinders

    Yes, I am sorry . I forgot to mention that there is sea water in between. Adrian
  5. Adrian77

    Friction concentric rotating cylinders

    Hello All, I am trying to calculate the friction (torque) between two concentric cylinders. Inside one is roating at 750 rpm, diameter is 826 mm and diametrical clearance is 4 mm. Outside cylinder is static. Length 98 mm. I guess it should be quite large but couldn't find any reference. Maybe...
  6. Adrian77

    Friction concentric rotating cylinders

    Hello All, I am trying to calculate the friction (torque) between two concentric cylinders. Inside one is roating at 750 rpm, diameter is 826 mm and diametrical clearance is 4 mm. Outside cylinder is static. Length 98 mm. I guess it should be quite large but couldn't find any reference...
  7. Adrian77

    MACHINERY LIBRARY COMPONENTS NX5

    Thanks John, I will to integrate our BCT parts inside the NX5. Adrián
  8. Adrian77

    MACHINERY LIBRARY COMPONENTS NX5

    Hello, Can somebody please describe which standard parts are included in the library now included in NX5? I mean bolts, nuts, etc.. (DIN,ISO,...). Somebody told me it is not very usefull and you still need an external library (like BCT). Thanks in advance,
  9. Adrian77

    ACROBAT PDF PRINTER IN UGS NX4

    nkwheelguy, I deleted the folders, but nothing changed.
  10. Adrian77

    ACROBAT PDF PRINTER IN UGS NX4

    Hi, Thanks for all your helpful posts. nkwheelguy: I have tried to delete the folder and files inside print_submitt folder but no success. I cannot print pdf (Acrobat 6 prof.)neither in a couple of konica machines nor OKI. Next step would be trying with the software kukelyk propose but I don't...
  11. Adrian77

    ACROBAT PDF PRINTER IN UGS NX4

    We use NX4. I have configured the plotters but when trying to plot a drawing, it sends a cgm file to the printers, the printer receive that data in the queue but nothing happens. Same occurs with the acrobat pdf printer. (I treated this pdf printer as any other printer and maybe it is not...
  12. Adrian77

    WHITE METAL BEARING OIL FILM STIFFNESS

    Dear Friends, I am trying to prepare a spreadsheet for calculating heat generation in a bearing consisting of a steel shaft running over white metal bearings with oil (hydrodynamic bearings). So far I have been investigating the heat generation, sommerfeld number and so on, using the formulas...
  13. Adrian77

    MASS PROPERTIES IN DRAFTING

    Hi, I have a problem with the mass propperties shown in the part list inside the drafting. I follow the tutorial, create the part list, where the different parts are shown, I add a columnn where the <W$=@$MASS> atribute is included. The problem is that besides in the design window, the...
  14. Adrian77

    NX4 TOLERANCES

    hi plmexchange, My question deals with ISO 286. If I have a shaft dimension 45h9, in the drawing I would show it as 45h9(0 -0,062) (positive above and negative below). the values in brackets would be completed automatically by the software, once I define the main value as h9 or whatever...
  15. Adrian77

    NX4 TOLERANCES

    Hello, Is estrange, since Solidworks has very user friendly feature to be used in 2D drawings, not so complicated as Nx PMI. The tolerances feature for 2D drawings in NX is too simple and doesn't include ISO symbol nor automated calculation of tolerance(PMI does it). Regards,

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