Question

5. Gear wear stress. Let both gears be made of steel (E = 30,000,000 psi, n = 0.3).
a) What is Cp?
b) What is r1, in inches?
c) What is r2?
d) What is the compressive stress on the gear set? (Answer should be a negative number.)

Gears are all 20º pressure angle with
a milled profile and a face width of ¼”. Let the transmitted load be 14.0 lbf and the pitch-line
velocity be 1178 ft/min.

Answer 1

Need more details like no of teeth, tangential force, module and poison ratio.

During the gear design, the main parameters
that would describe the designed gear such
as module, pressure angle, and root radius,
and tooth thickness, number of teeth could be used as a parameter to define gear.