Environment & Safety Gas Processing/LNG Maintenance & Reliability Petrochemicals Process Control Process Optimization Project Management Refining

Sofronas, A.

Consulting Engineer, Houston, Texas

Tony Sofronas, D. Eng, was the worldwide lead mechanical engineer for ExxonMobil Chemicals before retiring. He now owns Engineered Products, which provides consulting and engineering seminars on machinery and pressure vessels. Dr. Sofronas has authored two engineering books and numerous technical articles on analytical methods.

Case 3: Shaft galling in a bushing

Consulting Engineer: Sofronas, A.

When troubleshooting, the cause may not be as obvious as it first appears

Case 2: The hidden load in a three-bearing machine

Consulting Engineer: Sofronas, A.

A screening analysis helps in understanding the cause

Case 1: The fatigued motor shaft

Consulting Engineer: Sofronas, A.

First in a series of bimonthly case histories. This one reveals why belt tensioning was the real cause of failure