DIN standard confusion!
DIN standard confusion!
(OP)
I am using DIN 58045 to calculate contact ratio of some special gear pair. For calculation of tip circle diameter, we have x and y, x is defined as addendum modification factor and y as addendum factor. I have the value of x from drawing, but I do not exactly know what is y(addendum factor). In the standard it has just mentioned for DIN 58400 use y=1.1 and for DIN 867 use y=1.
Does anybody know the difference between addendum modification factor and addendum factor?
Does anybody know the difference between addendum modification factor and addendum factor?





RE: DIN standard confusion!
RE: DIN standard confusion!
After using Addendum modification, angle pressure value changes and DIN 58045 use an equation including evolute of working pressure angle to find it. What is the evolute of angle? What is difference between evolute and involute of an angle?
RE: DIN standard confusion!
When appreciable amounts of profile shift (or addendum modification) are used on a gear mesh, and the standard PCD is retained, you need to be careful about interference between the tips/roots of the mating gears.
RE: DIN standard confusion!