Repeat Problem 9.30 using a steel pinion and a cast-iron gear.
Problem 9.30
Two mating steel spur gears are 20 mm wide, and the tooth profiles have radii of curvature at the line of contact of 10 and 15 mm. A force of 250 N is transmitted between them.
(a) Compute the maximum contact pressure and the width of contact.
(b) How deep below the surface is the maximum shear stress, and what is its value?