A herringbone speed reducer consist of 20 teeth pinion driving a 100 teeth gear. The normal module of gear is 2mm. The face width of each half is 30mm and Lewis factor is 0.4. Calculate the material constant K if surface hardness is 400BHN.
(a) 1.25 N/mm²
(b) 4.05 N/mm²
(c) 3.25N/mm²
(d) 2.56N/mm
I am preparing this question from in my class test.
This exercise is from the Rolling Contact Bearings, Spur Gears and Helical Gears in unit Rolling Contact Bearings, Spur Gears and Helical Gears of Machine Design