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Gear Drives

Nomenclature d 1t trial diameter of pitch circle, mm
d pitch diameter of virtual spur
v
a centre distance, mm gear, mm
b face width, mm E elasticmodulus,MPa
c clearance, mm F axial force, or thrust force, N
a
d diameter of reference or pitch F ca design load, or actual load, N
circle, mm F normal force, N
n
d a diameter of addendum circle, mm F r radial force, or separating force, N
d diameter of base circle, mm F tangential force, or transmitted
b t
d diameter of dedendum circle, mm force, N
f
d m mean diameter, mm h tooth height, mm
Analysis and Design of Machine Elements, First Edition. Wei Jiang.
© 2019 John Wiley & Sons Singapore Pte. Ltd. Published 2019 by John Wiley & Sons Singapore Pte. Ltd.
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