Design Power (\( P_d \)):

\[ P_d = P_t \cdot (SF_{lo} + SF_{lu}) \]

Where:

• \( P_d \) is the design power, in kilowatts (kW).
• \( P_t \) is the power to be transmitted, in kilowatts (kW).
• \( SF_{lo} \) is the service factor for the type of load, ranging from 1.0 to 1.8.
• \( SF_{lu} \) is the service factor for the type of lubrication, ranging from 0.1 to 0.7.