Page 171 - Gear Technology Solutions
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Figure 3: Basic design parameter of Hirth coupling
Legend to Figure 3:
r… Root fillet radius
s… Root clearance
H… Theoretical tooth depth
h… Actual whole depth of teeth
U… Profile contact area
x… Access depth of pointed rack (2•x)
b… Included pressure angle
D… Outer diameter
d… Inner diameter
l… Face width
a… Dedendum angle
a’… Addendum angle
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