Design Guide
Page 125
... after 7,500 on/off , at a temperature of 70 °C. The capability of the functional mechanical elements (ball bearing, shaft, and tower assembly) must be within spec for fans. Thermal and Mechanical Design Guidelines 125
... after 7,500 on/off , at a temperature of 70 °C. The capability of the functional mechanical elements (ball bearing, shaft, and tower assembly) must be within spec for fans. Thermal and Mechanical Design Guidelines 125