Fanuc Alpha Series

Alpha i CTTS (Coolant Through the Shaft Spindle Motors)

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Alpha I Servo motors
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Servo offers full service Fanuc Alpha servo and spindle motor repair. Every servo motor that comes into our facility is repaired with the following features:

   • In-house electrical motor rewinding to original manufacturer's specifications
peer1    • One year warranty from installation date
   • Warranty tracking on ALL repairs by serial number
   • Same day turnaround service available at NO extra charge

Our servo motor repairs have a less than 1% yearly failure rate, which is the lowest in the industry. We also do NOT use any flat rate pricing. We only charge for what is wrong with the motor, which means a significant cost savings for you!

In order to keep your down time to a minimum and save you money, each Fanuc Alpha servo and spindle motor repair includes the following extra services:

   • All original Fanuc drives and CNC controls
   • Test system designed and engineered by GEF and SMD
   • Encoder and signal generator testing and alignment to manufacturer's specifications
   • Specially designed AC motor test stand
   • Propietary motor winding fixtures
   • Copper windings and class H insulation materials
   • Superior sealing system for stator windings, end bells and housing fits, connectors, seals, etc.
   • End bells and shafts are measured and assembled to OEM specifications in MICRONS
   • Balancing to Class 1 or better
   • Vibration testing with SKF analysis equipment
   • Servo does NOT modify bearing bores to use generic bearings. We only use OEM high precision bearings.

We also stock a full inventory (over $100,000) of original Fanuc motor parts including precision ball bearings. Servo offers the lowest end-user prices on new motors and controls. Rush delivery service on your repairs is also available. Don't hesitate to contact us to learn more information on how we can be your #1 source for Fanuc Alpha servo and spindle motor repair.



Servo repairs a large quantity of Chiron, Enshu, NTC, etc spindle motors that are flanged mount hollow shaft for coolant flow through the shaft. 1ft5100




Servo repairs a large quantity of Chiron, Enshu, NTC, etc spindle motors that are flanged mount hollow shaft for coolant flow through the shaft. Servo ALWAYS measures the TIR of the flange, checks mounting holes, as well as other tolerances of these spindle motors.




Rebuilt and rewound Fanuc Alpha i 460V HV series spindle motor having its sensor aligned, as well as vibration testing.
fanuc alpha i 460v hv 



Chiron, NTC, Enshu, Toyoda, etc. style coolant through the shaft (CTS) flange mount spindle motor in for repair.  These motors have extremely tight tolerances on their flange and shaft fits - measured in microns.
coolant through shaf 



Fanuc coolant through the shaft (CTS) spindle motors (as well as other models) use special NSK bearings only available in the US through Fanuc or purchased in large quantities.  These bearings are usually high precision ball bearings with special tolerances.  A generic bearing will not do.  Servo stocks most of these sizes used in ample volume
bearings