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  1. hexhamallstar

    Bevel gear inspection

    Hi gearcutter, Thanks for your reply and sorry for the delay, these gears are the final drive gears however i've also got some bevel gears from the inside of a differential mechanism that I would like to find the load capacity for. So far the companies that I have approached have told me that...
  2. hexhamallstar

    Bevel gear inspection

    Hi all, I'm currently having a problem with bevel gear inspection. Basically I am working on a right angle drive unit, of which I have a number of benchmark gear pairs that I would like to base my design on. The benchmark gears are all precision forged straight bevel gears and I do not have the...
  3. hexhamallstar

    Spline standard issue

    Hi Mfg, I've attached the picture below, it's not the best quality as i'm not really supposed to be taking photos in our workshop. The part is purely for benchmarking purposes, we are using a similar spline and would like to have accurate geometry to apply calculations to so we can figure out...
  4. hexhamallstar

    Spline standard issue

    Those measurements were taken near the center of the spline shaft (i.e where I thought the spline was at it's 'nominal' condition), do I need to retake them at the edge of the crown? The verniers I'm using measure down to 1/100th of a millimeter, so these measurements I would say are easily...
  5. hexhamallstar

    Spline standard issue

    Measured over 3 teeth as 8.33mm, 4 teeth as 11.35 mm. So this gives base pitch of 3.02mm or 0.1189 inches. Looking at the tables this gives a circular pitch of 0.125, but my measurement is between 17.5 and 20 degrees pressure angle (0.11921 & 0.11746). It's much closer to the 17.5 degree value...
  6. hexhamallstar

    Spline standard issue

    Thanks for the replies, i'll get a picture tomorrow and post it up. Sorry for the ambiguity, I was using verniers so the tip diameter is going to be pretty much bang on, my problem was that the splines are crowned slightly at the ends but the vernier blades only go into the spline root up to a...
  7. hexhamallstar

    Spline standard issue

    Hi all, I'm currently reverse engineering a spline with intent use it as a benchmark for strength. I've measured it as tip diameter = 30.5mm, root diameter = 28.5mm and z=28 (these measurements are pretty rough). I've looked in DIN5480 and ISO 4156 aswell as ANSI B92.2M and can't seem to match...
  8. hexhamallstar

    MITcalc problems

    Hi all, I'm trying to use MITcalc to size a bevel gear set for the internals of an open differential. My starting point is to take the bevel gears from an existing diff and put in the power and rotational speeds they have, and see if the program gives out the size that I know they are. After...

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