Question

Calculate the bearing pressure when the reaction at 1 is 176700N and the length and diameter of crankpin are 120mm and 150mm.

(a) 8.15N/mm^2

(b) 7.89N/mm^2

(c) 5.67N/mm^2

(d) 9.81N/mm^2

The question was posed to me by my college director while I was bunking the class.

The query is from IC Engine topic in division Design of IC Engine Components of Automotive Engine Design

Answer 1

Correct option is (d) 9.81N/mm^2

Explanation: Pb=\(\frac{R_1}{d_1l_1}\)

                       Pb=176700/(120×150)

                          =9.81N/mm^2