Redesigned to provide improved air flow through all motor frames keeping low operational temperatures and assuring reliability and extended lifetime. The aerodynamic design of the fan cover increases effective airflow, thus minimizing losses due to the recirculation of air between fan and fan cover. The fan was designed to provide strength and reduced noise level. Motor terminal box and eyebolts were repositioned on larger frames to allow better airflow. The new W22 cooling systemalso contributes to:
* Cooler bearing temperature extending relubrication intervals.
* Lower Noise Level fulfilling the most demanding Health & Safety regulations.
* Lower Overall Operational Temperature resulting in longer life.