SHOP TALK

Most maintenance managers understand motor repair and rewinding. But when core iron testing reveals excessive losses in the stator laminations, you face a more complex decision: motor restacking. This advanced rebuild can save tens of thousands of dollars on large motors—but only when the economics make sense. At Independent Electric, we encounter this scenario regularly with motors above 600 horsepower. When core testing shows the iron has too much loss measured in watts pe

When a critical electric motor fails in your facility, the clock starts ticking. Every hour of downtime costs money, and the pressure to make the right decision—fast—is intense. Should you repair the motor? Does it need a complete rewind? Or replace it entirely? This isn’t just a maintenance question. It’s a strategic decision that impacts your operating budget, production reliability, and long-term equipment performance. Make the wrong call, and you might waste money on a re

"Do the noise for us." That was a running gag on NPR's Car Talk, where the Magliozzi brothers from Boston diagnosed car problems based on callers trying to imitate the sounds their vehicles made. "Is it more of a 'click-click-click' or a 'thunk-thunk-thunk'?" they'd ask, somehow extracting diagnostic gold from amateur sound effects over the phone. The sounds your motor makes can indicate what's failing inside if you know how to listen. Electrical problems sound different from

It’s music to your ears as you walk the floor at your facility: the steady hum of motors keeping production running. But what happens when that hum changes? When vibration increases just slightly? When a bearing starts making noise that's not quite right? Motors don't just fail overnight. They give you warnings. The question is: are you reading the signs? At Independent Electric, we've spent over 100 years helping Midwest manufacturers avoid catastrophic motor failures. And h

Sixty percent of motor failures can be attributed to bearing problems. That's the dominant failure mode for industrial motors, and these failures are almost entirely preventable if you catch them early. Vibration analysis detects bearing problems, misalignment issues, and rotor imbalances months before catastrophic failure, catching problems that are undetectable by observation alone. Here's what it prevents and what those failures cost when you don't catch them early. Three

Picture this: Your critical production motor starts making a strange humming sound. Before you can investigate, smoke pours out. The motor shuts down completely. Your line stops. And when your motor service partner inspects it, the news isn’t good: it needs a rewind. The quote? $15,000 to $20,000. The lead time? Two to four weeks. The cost of being down that long? That's the number that really hurts. This is what a catastrophic electrical failure looks like. And it's exactly

Independent Electric has been diagnosing and repairing electric motors since 1908. We've learned that the best maintenance managers don't just react to problems—they partner with experts who can spot issues before they become emergencies. Our shop team put this article together to explain the two critical testing methods used to diagnose electric motor issues so you can have confident conversations with your motor service partner about protecting your most critical equipment

How to properly lubricate bearings for electric motors to keep equipment running reliably and prevent unplanned downtime.

See how the PdMAEYE continuous motor monitoring device can support your predictive maintenance strategy and help prevent costly downtime.

Learn how to determine what schedule is best for route-based maintenance on your electric motors.

Discover the top causes of failures in bearings, common bearing failure symptoms, and how to prevent costly downtime with expert analysis and best practices.