• Which lubricant would be better if used in a hydraulic reservoir?
  • At 40 Deg C; at 75 Deg C? They are different. Do you know why?

Proper Viscosity Index Selection

• If you have a heavily loaded bearing with slow rotational speed, should the viscosity of the lubricant be high or low?
  • Viscosity should be selected by considering Speed, Load and Temperature

Heavily scored bearing affected by lubricant viscosity being too low.

• Lubricant Film type and Film Strength minimize metal to metal contact.
  • Hydrodynamic Lubrication
  • Elastohydrodynamic Lubrication

Full Fluid Film Lubrication