Page 353 - Gear Technology Solutions

The Da limit values for the list of 9 cutting edge length values can be calculated
and result in:

L = 5.0mm, Da = 0.0009mm
L = 7.5mm, Da = 0.0010mm
L = 10.0mm, Da = 0.0011mm
L = 12.5mm, Da = 0.0012mm
L = 15.0mm, Da = 0.0013mm
L = 17.5mm, Da = 0.0014mm
L = 20.0mm, Da = 0.0015mm
L = 22.5mm, Da = 0.0016mm
L = 25.0mm, Da = 0.0017mm

Figure 6: Maximal radii of curvature - modified approach

The resulting slanted straight line of maximal Radii was imported into the array
of graphs in Figure 4, resulting in Figure 6. A measurement length of 10mm
results now in a maximal cutting-edge radius of 1000mm and a 20mm cutting
edge length allows 3000mm radius. The modified approach not only takes into
account experience and best practices in bevel gear design, it also compliant
with the fact that smaller radii are easier to measure accurately than very large
radii. If the intersection points between the slanted maximal Radii line and the
hyperbolic graphs deliver the diagram with maximum radius of curvature ac-
cording to the modified approach, shown in Figure 7 [2].

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