INDUCED DRAFT FAN OF 200 MW (AXIAL FLOW FAN) NDE BEARING DAMAGE

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This is regarding ID fan of 200 MW unit ,axial flow fan .Fan NDE bearing is inside duct and Fan DE bearing is outside duct and is accessible. Fan is coupled to motor by means of flexible coupling.

There was abnormal sound from fan side. On bearing inspection following was observed .What could be reason for this damage ? please guide

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Tags: fan, bearing, INDUCED, DAMAGE

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