Question

3. (20 points) Design a plain surface bearing using the full-film hydro dynamically lubricated bearing approachable to carry 1500lb from a shaft having a diameter of2.5in and rotating at 1000rpm.

Start with a nominal pressure of 240psi. Identify the required minimum lubricant viscosity, and calculate the friction torque (inIb in) and the frictional power loss (hp).

Fig: 1