Brands / Nidec
Nidec Motor Repair
A Plus Electric Motor Repair, Inc. repairs and rewinds Nidec motors at our shop in St. Charles, Illinois. Nidec is the world’s largest electric motor manufacturer, and its industrial brands are installed in pumping stations, HVAC systems, process plants and machinery across the Midwest. We repair Nidec AC and DC motors up to 650 HP for customers throughout northern Illinois, northwest Indiana and southern Wisconsin.
& sell
- Service
- Repair, rewind, replace
- Standard
- 7–10 days
- Rush
- 3–5 days
- After hours
- (630) 283-8433
Free within 50 miles · Calls our office
Nidec Equipment We Repair
What to send us
A photo of the nameplate speeds up quoting. On Nidec and US MOTORS motors, the model number and the ID or catalog number identify the exact design. Include horsepower, voltage, frame and enclosure if the nameplate is damaged, a short description of the failure, and how quickly you need the motor back.
Schedule a Free PickupCall (630) 283-3569Request a Quote OnlineThe Brands Under Nidec
Many motors that started under other names are now Nidec products. Nidec acquired Emerson’s motor business in 2010, which brought the US MOTORS brand into Nidec Motor Corporation. In 2017 Nidec added Leroy-Somer motors and alternators and Control Techniques drives, also from Emerson. In 2019 it acquired Embraco refrigeration compressors.
That means a Nidec job that comes into our shop might carry a US MOTORS, Leroy-Somer, Emerson or Nidec nameplate. We repair all of them, along with the Control Techniques drives that often control them.
Why plants send their Nidec work to A Plus
We come get it
Free pickup and delivery within 50 miles of our St. Charles shop, with pickup or freight from farther out.
Nothing gets sent out
Winding, testing, dynamic balancing and machining all happen in our own shop. We rewind with Grade H magnet wire and Elantas varnish, a step above what most shops use.
7–10 days, or 3–5 rush
Time-critical jobs are worked through nights and weekends when a line is down.
EASA member shop
EASA, the Electrical Apparatus Service Association, is the international trade association for motor repair shops. Members get its engineering support, technical data and recommended repair practices.
One year, every repair
And when replacing is faster, same-day delivery on new motors.
Our Nidec repair process
Incoming inspection
We record the nameplate data and the motor’s condition when it arrives.
Testing
Ground testing, surge comparison and core loss testing identify winding and core problems.
Teardown and failure analysis
We inspect bearings, shaft, rotor, stator and housings to find the cause of failure, not just the symptom.
Written quote
You receive a repair quote, and a replacement quote when a new Nidec motor or equivalent makes more sense.
Repair
Rewinding, bearing replacement, shaft and housing machining, and brake work as required.
Balancing and final testing
before the motor is returned.
Common Reasons Nidec Motors Come In
Need a new Nidec unit instead?
We sell new and surplus motors, gearboxes and drives too. Call with the nameplate and we will quote a matched replacement alongside the repair, so you can compare and decide.
Straight answers on Nidec
Q1Our motor says US MOTORS or Emerson. Is that Nidec?
Yes. Nidec bought Emerson’s motor business in 2010, so US MOTORS and many older Emerson motors are now Nidec products. Leroy-Somer motors and Control Techniques drives joined Nidec in 2017.
Q2What do you need to quote a vertical pump motor?
Horsepower, voltage, RPM, whether it is hollow shaft or solid shaft, the thrust rating, and whether it has a non-reverse ratchet. A photo of the nameplate covers most of it.
Q3How do you decide between repair and replacement?
It mostly comes down to two numbers: what the repair costs and how long a new one takes to arrive. Sometimes the repair costs more than a new motor, but if the OEM is quoting four to five weeks, repair still gets your line running sooner. We lay out both options with real prices and lead times so you can make the call. Call (630) 283-3569 and we will quote it.
Q4Can you pull the motor out and put it back in?
Yes. We can come out, uninstall the motor, and reinstall it once it is repaired, including alignment and drive setup, so your maintenance crew can stay on everything else.
Other brands we repair & sell
Nidec unit down?
Office: Monday through Friday 8:00 AM to 4:30 PM, Saturday 8:00 AM to 12:00 PM. Emergency line answered 24/7.
A Plus Electric Motor Repair, Inc., 3483 Swenson Ave, St. Charles, IL 60174. Nidec, US MOTORS, Leroy-Somer, Control Techniques and Embraco are trademarks of their respective owners. A Plus Electric Motor Repair, Inc. is an independent repair facility and is not affiliated with or authorized by the manufacturer.