Suggest you have a read of CTV-SVB29A-EN
"The thrust (or "outboard") bearing used in CVHE/F/G and CDHF/G chiller compressors is an anti-friction type, "duplex" ball bearing. As a result of this bearing’s properties, the classic oil analysis program - successfully used to evaluate the condition of the babbitted
inboard bearing - does NOT reliably indicate the condition of the thrust bearing."
IMHO a vibration analysis program is a useful predictive maintenance tool for preditcing and correcting motor or bearing related faults prior to equipment failure. Rotor bar failures and other motor/bearing related faults can be detected through vibration analysis.
We commonly use it on remote "fly in/fly out" industrial production sites where equipment downtime has huge financial impact.