The bearing shells of the high-speed shaft of the booster in catalytic cracking units always suffer from babbitt shedding
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The booster pump in our factory was manufactured by Shenyang Blower Factory. The speed of its high-speed shaft reaches over 8,000 revolutions per minute. Problems have been occurring over the past couple of years: after a few months of use, the bearing shells at the impeller end of this high-speed shaft experience flaking of the babbitt material, and abnormal noises are heard during operation. We would appreciate guidance from experienced technical experts.
I guess it’s a problem with the dynamic balance of your impeller. Over time, the dynamic balance condition may change due to dust or oil contamination. The final worn state also changed. It also leads to uneven wear of the bearing shells, and even the detachment of the babbitt alloy.
It could also be that the bearing clearance is too small! By the way, is the bearing shell temperature high?
Is the bearing temperature high? Is there noise inside the gearbox? Is the bearing vibrating heavily?