Announcement

Collapse
No announcement yet.

Milled Bevel Gears

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • .RC.
    replied
    This .pdf might be helpful, I scanned it out of an old book that was used for apprentices..

    http://users.beagle.com.au/lathefan/...vel%20gear.pdf

    Leave a comment:


  • John Stevenson
    replied
    Steve, PM me your email addy and I'll post some stuff on.
    Don't bother with Ivan's book if you are doing what I call proper bevels as his method is for parallel depth bevels which are a different animal, easier to do but they have to run as pairs

    Leave a comment:


  • oldtiffie
    replied
    "Shop (made)" bevel gears.

    Yup Ringer - that item at your link will do for "shop" gears for medium accuracy and load and speed capacities - but it will work.

    "Gears and Gear Cutting" (Ivan Law) - pages 104>111.

    Next best is the "Machinery's Handbook" which requires a fair bit of math and tables etc.

    Leave a comment:


  • .RC.
    replied
    Try here -->> http://www.amazon.com/Gears-Gear-Cut.../dp/0852429118

    Leave a comment:


  • oldtiffie
    replied
    Kludges and compromises

    I'd agree with JT.

    Take it easy - and go back over your calculations.

    Bevel gears cut with a standard tooth cutter - or any cut on a mill - are a "kludge" and a compromise at best.

    But as JT says, with a bit of prudent use of some clear thinking, you will get a pretty satisfactory result.

    Leave a comment:


  • J Tiers
    replied
    No. I've been thinking of writing an article, since I have cut a bunch of bevels fairly recently, but I'm not nearly done. it's a big subject, and easy to propagate bad info. I don't know of a site that is really good. Lots of "noise" via google.

    Why don't you lay it out yourself? The best bet for directly getting workable gears is to just find a gear cutter that is best fit to tooth profile about 2/3 of face back from the apex end of the tooth.

    Then set up to cut on the pitch line angle, letting the rest of the tooth go hang. You'll get a good tooth except at apex end, if you do the side shift deal to get tooth thickness right and toothspace right. You file down the apex end a little where it is too thick.

    Leave a comment:


  • SDL
    started a topic Milled Bevel Gears

    Milled Bevel Gears

    Does anyone know a good site for entering the basics data for bevel gears and getting all the Dimensions.

    I have tried the plug in in the Machinery handbook CD but, vertex distance at small end of tooth j is coming out bigger (1.25") than Vertex or apex distance J (0.6294)
    this is for 8DP, 12 tooth pinion, 44 tooth gear.

    Steve Larner
Working...
X