Moog servo motors are known worldwide for their precision, responsiveness, and reliability in demanding industrial and aerospace applications. Servotech provides comprehensive Moog servo repair services designed to restore performance, accuracy, and durability to original factory-level standards.
Moog AC Servo Motor Repair
Moog AC servo motors operate in high-performance environments where tight tolerances and consistent feedback are critical. When an AC servo motor fails, our repair process begins with a detailed incoming inspection and diagnostic testing to identify electrical, mechanical, and feedback-related issues.
Our technicians have extensive experience working with Moog motor designs and construction methods. Using detailed technical documentation and OEM-equivalent specifications, we disassemble each motor, inspect windings and stators, evaluate encoder or resolver feedback systems, and test bearings, seals, and connectors. Any worn or damaged components are replaced with high-quality parts that meet or exceed original specifications.
Servotech performs critical services such as stator rewinding, precision machining, and dynamic balancing in-house. This allows us to tightly control quality while significantly reducing turnaround times. Once repairs are complete, each Moog AC servo motor undergoes comprehensive testing to verify torque output, insulation integrity, and feedback accuracy—ensuring dependable performance once it’s back in service.
Moog DC Servo Motor Repair
Moog DC servo motors are widely used in applications requiring smooth motion control and high torque at low speeds. These motors demand specialized knowledge to repair correctly, especially when it comes to armature condition, commutation, and magnet strength.
Our DC servo motor repair process includes complete disassembly and inspection of the armature, commutator, brushes, and field magnets. We correct common failure points such as worn commutators, degraded insulation, bearing failure, and loss of magnetic strength. If necessary, Servotech can recondition or rewind armatures and restore magnetic fields using professional-grade equipment.
Feedback devices and tachometers are carefully tested and calibrated to ensure accurate speed and position control. Unlike shops that focus only on restoring basic operation, we emphasize long-term reliability and performance consistency. Each Moog DC servo motor is load-tested prior to shipment so you can be confident it will perform as expected in your application.
Our Repair & Refurbishment Process
1. Checking In
- Motor is photographed and documented by our receiving department
- Unique job number is assigned
- Acknowledgement is sent via email
- Motor is delivered to the appropriate department to be evaluated
2. Evaluation
The evaluation of each Moog servo motor is extremely thorough and is 100% free for all our customers. Our technicians fully inspect all mechanical and electrical parts. They also perform multiple tests to determine the cause of failure. This includes, but is not limited to:
- Bearing fits
- Housing fits
- Worn output shafts
- Corroded and/or broken flanges
- Burnt Stator Windings
- Failed Encoders
- Damaged Connectors
3. Quote
Our purchasing department then generates a firm quote, outlining the cause for failure, and listing all needed parts for repair. Our team excels in sourcing any parts that are not already stocked in our extensive inventory. We understand that getting your machine up and running is of utmost importance, and we go above and beyond to offer you the quickest delivery possible.
4. Servo Motor Repair
Once the quote is approved, orders are placed for any needed parts and our technicians proceed with repairs. Anything that requires our in-house services, such as winding or machine work, is taken to the corresponding department. When ready, the motor is re-assembled with all new parts and hardware, bringing it to good-as-new condition.
5. Final Testing
Upon completion of repairs, the motor heads to our quality control department for final testing. Here, we review the entire repair and run it on a factory specific drive. Using the same drive that is used in your machine ensures that your Moog motor will run just as it should once re-installed. We take great pride in maintaining an inventory of factory drives as it allows us to offer the most effective, reliable refurbishment possible.
6. Painting & Re-Labeling
Not only does a fresh coat of paint make your Moog servo motor look brand new, but it also provides protection from outside contaminants, extending the overall lifespan of the motor. Our painting department provides application-specific paint, such as:
- Food grade epoxy
- IP67 epoxy
- Marine epoxy
7. Return Shipping
Our shipping department takes pride in offering the highest quality care when preparing a refurbished motor for its journey back to you. Protective caps are put on connectors, nameplates are applied to the motor, and documentation is reviewed to make sure any accessories, such as eye bolts or shaft keys, are returned to you. Our high-quality spray foam packaging system creates a mold around the motor to keep it safe in the box during shipping. For larger motors that require freight shipping, we build a custom crate on-site to fit each motor’s unique size and shape.
- Bearing fits
- Housing fits
- Worn output shafts
- Corroded and/or broken flanges
Frequently Asked Questions (FAQs)
Can I get a quote to repair my Moog servo motor prior to sending it in?
No, we need to have the servo motor in-house to provide a firm quote, but we can typically give you a ballpark or base price over the phone. Call our expert staff at 860-632-0164 and have your Moog servo motor’s model number handy.
Where do I send the servo motor?
Send your Moog servo motor to the address below. No need to address it to anyone’s attention – our receiving department will know exactly what to do when it arrives.
Servotech, Inc.
478 Timber Ridge Road
Middletown, CT 06457
How long will it take to rebuild or repair my Moog servo motor?
Our standard lead time is 5 business days, if all parts are in stock. You may consider our Rapid Response service for an additional 15%, for a 48-hour turnaround.
Do you offer a warranty on repairs or refurbishments?
Yes, we offer a one-year in-service warranty on Moog servo motor repairs & refurbishments. This means the warranty period begins the day your servo motor is installed.
What is your service area?
We service all major regions around the world (Americas, Europe, Asia, Africa and Oceania). If you can ship us your servo motor, we can provide a solution. We have many customers throughout and outside of the United States.
