Vibration Reliability Evaluation of Main Fan Spindle Bearings

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Motor model</td><td class="align_center">YVVF800-8</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Motor power</td><td class="align_center">4000 kW</td></tr><tr><td class="align_left">Rated flow</td><td class="align_center">650 m<sup>3</sup>/s</td></tr><tr><td class="align_left">Full pressure</td><td class="align_center">6500 Pa</td></tr><tr><td class="align_left">Rated speed</td><td class="align_center">740 r/min</td></tr><tr><td class="align_left">Wheel and blade quality</td><td class="align_center">60000 kg</td></tr><tr><td class="align_left">Diameter of air duct</td><td class="align_center">3750 mm</td></tr><tr><td class="align_left">Single-row angular contact ball bearing</td><td class="align_center">FAG 7244-B-MP-UA</td></tr><tr><td class="align_left">Single-row cylindrical roller bearing</td><td class="align_center">FAG NU344-E-M1</td></tr><tr><td class="align_left">Bearing lubricant</td><td class="align_center">46 Turbine oil</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>NMAF3750/2135-1B main fan parameters.</div>

Shock and Vibration

tab1

Table 1

Table 1: Vibration Reliability Evaluation of Main Fan Spindle Bearings 