A round flange bearing is fastened to the machine frame by means of 4 cap screws. The angle made by central axis of bolt 2 and horizontal is θ. Also the radii of flange and pitch circle are a & b respectively. Given: Sum of squares of distance of bolts from axis of tilt is 2a² +b². Which bolt is under maximum stress if dowel pins are used to relieve cap screws from shear stress?
A. 1
B. 2
C. 3
D. 4
Answer:C
A round flange bearing is fastened to the machine frame by means of 4 cap screws. The angle made by central axis of bolt 2 and horizontal is θ. Also the radii of flange and pitch circle are a & b respectively. Given: Sum of squares of distance of bolts from axis of tilt is 2a² +b². Which bolt is under maximum stress if dowel pins are used to relieve cap screws from shear stress?
A. 1 B. 2 C. 3 D. 4