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Most servo motors are repaired and delivered in five business days. We also offer a 48-hour rapid turnaround on servo motor repair services for a nominal 15% expediting fee.

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The Motor Repair Process

Details on Servotech's extensive evaluation, repair and refurbishing processes. Read more...

Yaskawa Servo Motor Repair

One of our most commonly requested services servo motors, detailed information on our Yaskawa repairs. Read more...

Fanuc Servo Motor Repair

One of our most commonly requested services servo motors, detailed information on our Fanuc repairs. Read more...

Replacement Encoders

OEM replacement and Servotech manufactured encoders specifications and online ordering. Read more...

Feedback Devices Repair

We repair most makes of encoders, resolvers, tachometers and other forms of feedback. Read more...

Servo Motor Parts

We inventory a large stock of servo motor brake, bearings & DC parts forquality and turnaround. Read more...

Servo Motor FAQs

How can I buy a replacement servo motor for less than OEM costs?: Our technicians can help you locate a direct replacement for your OEM servo motor. If a replacement does not exist, we'll refurbish your servo motors to new condition... Read more about saving on servo motor replacements.
How do I replace a resolver? How can I test the resolver?: Almost all resolvers have 6 leads. Use a voltmeter to ring out the leads and determine which 3 pairs of wire are circuits. Then record the resistance of each circuit... Read more about replacing and testing resolvers.
Where can I find servo motor connectors?: If you know the manufacturer of your connector, you can go straight to their site. If you can obtain a part number, cross-reference it with a replacement part number... Read more about finding servo motor connectors.
How do I disassemble/rebuild my DC servo motor?: Testing the armature insulation and circuit correctly are of utmost importance, as is the proper method not to damage windings as you separate the armature from the field frame... Read more about rebuilding servo motors.
Why has my servo motor lost power? What do I do if my motor has lost torque?: Does your servo motor have a brake? If there is a brake in your motor then you need to check the voltage going to the brake... Read more about servo motor torque loss.
How do I fix a resolver overspeed error?: Eliminating causes of resolver overspeed can reveal what needs repair. Are your cables properly shielded? Your cables should have an internal shield that is grounded... Read more about resolver overspeed issues.
How do I prevent damage to my servo motor when removing a coupling?: Are there any setscrews or bolts on the end of the shaft? Pulling the coupling off of the shaft without removing setscrews will damage the shaft... Read more about preventing damage to servos when removing couplings.
What is the best way to remove/install my heavy servo/spindle motor? How do I use slings?: Always use one sling per eye-blot. Never loop the sling through two eye-bolts. Slings are specifically rated for certain loads. These loads vary... Read more about using slings on your heavy servo or spindle motor.
What is so difficult about fixing a bearing fit?: Being aware of the side effects of a bad fit will improve the likelihood that your servo gets properly repaired the first time. Broken shafts can occur where they are often missed... Read more about fixing servo motor bearing fits.
How can I reduce noise from my servo system?: Electrical noise can disrupt the feedback signals (especially with resolvers) and cause the drive to not perform as instructed. Cable selection is crucial... Read more about servo noise reduction.
How did oil/coolant get in my motor? How can I keep oil/coolant from getting in my servo motor?: Knowing routes in can prevent liquid intrusion from happening again. Replace the shaft seal every time your motor is worked on... Read more about protecting your servo motor from oil and coolant leaks.
What causes premature brush wear on my DC servo motors?: Is the head of the brush broken or chipped? If so, then a high bar or piece of mica could be on the commutator. You will need to clean your comm and may need to rewind your armature... Read more about servo brush wear.