Gary Wamsley, JoGar Energy Services


Gears and Bearings February 1, 2010

Using technical assessment to identify root cause

A large pulp mill was shut down due to failure of the forced draft fan on its recovery boiler. Excessive vibration of the inboard bearing had broken the cooling water line inside the oil-filled bearing housing and flushed out the oil. The bearing journal had overheated, cracked and melted the Babbitt causing heavy scouring damage to the shaft surface.

By Gary Wamsley, JoGar Energy Services
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