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Recent content by ENG101

  1. ENG101

    COSMOSMotion disappearing joints

    I am using SW07 COSMOSMotion and am having trouble with the joints disappearing, actually it's more that they only appear during dynamic rotation of the parts. When I rotate the assembly the joints and center of gravity symbols show up but disappear as soon as I stop rotating and I am not...
  2. ENG101

    Help finding gear supplier

    Thanks for all of your help. Trying to replace this odd pinion is turning into quite the endeavor. Tell me what you think about this. Currently the pinion drives a 58 tooth change gear, (a 58 tooth spur gear to 9 tooth #60 roller chain sprocket that turns the davit). I am thinking about...
  3. ENG101

    Help finding gear supplier

    Diskullman, I think the answer is the BG 6 tooth pinion. Before ordering, I want to make sure that this is a 6 pitch gear. The mating gear to the oddball 7 tooth is a 58 tooth gear with an OD of 9.75" and an ID of 9.125", and what appears to be about .125" clearance. I have the ability to...
  4. ENG101

    Help finding gear supplier

    Thanks for the help Philrock. It may take a few days to get back to you with the details. The one thing that can't change much is the final RPM. When your swinging a 26' cabin cruiser onto land, it slow, steady, and easy. The davits pivot at about 1/2 RPM, and sometimes that seems fast.
  5. ENG101

    Help finding gear supplier

    This is an old and odd set up. This runs the power pivot on a 10K lb set of davits. A 1/2hp motor runs through a 60:1 reducer with a 6 pitch 7 tooth output pinion. The pinion turns a 58 tooth spur gear coupled to a 9 tooth 3/4 pitch chain sprocket that drives a 58 tooth chain sprocket on the...
  6. ENG101

    Help finding gear supplier

    I need to replace an odd gear and am having trouble finding a gear supplier. The pinion is a 6 pitch 7 tooth gear on the ouput shaft of a 60:1 reducer. I have tried a few suppliers, but no luck, so any suggestions would be appreciated. Thanks.
  7. ENG101

    Manufacturing tolerances

    You may want to look at this site, in particular Figure 10. http://www.engr.ku.edu/~rhale/ae510/websites_f02/Manufacturing-tolerances.pdf One other point, you mentioned specifying concentricity between two surfaces. If you are specifying a relationship between surfaces, you should use runout...

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