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(#106) Shaft Deflection Kills Mechanical Seals
This episode dives into one of the most misdiagnosed failures in rotating equipment: the shaft that quietly destroys seals, bearings, and uptime while everyone blames the wrong part. We break down why mechanical seals keep failing even after replacement, and how shaft deflection, stress risers, keyways, poor surface finish, machine lead, fatigue loading, critical speed, and bad installation practices create repeat failures that look like separate problems.
You will learn why shaft stiffness matters more than simple torque strength, how even tiny deflection at the seal face can cause immediate…
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