Question

Assuming uniform pressure over the supported area, the friction moment in an axial bearing of a shaft of diameter d for an axial load of F $\text{(with co-efficient of friction}\mu \text{)}$ is given by

• A. $\frac{4}{3}F\mu d$
  
• B. $\frac{1}{3}F\mu d$
• C. $\frac{2}{3}F\mu d$
• D. $F\mu d$

Answer 1

The correct option is D $F\mu d$

The pressure is uniform.
So, frictional moment = Fµd.