Your Servo Motor and Industrial Electronics Repair Specialists
Your Servo Motor and Industrial Electronics Specialists

Recent Repair Job - Fanuc Servo Spindle Motor Mod

February 26, 2014

A customer shipped us this Fanuc Spindle Motor for modification, to fit their application.  Jason, the lead Servo Technician at Repair Zone, had to fully disassemble and machine a keyway into the shaft.  Also, he had to machine the end bells and put new bearings on this unit.  Below is the pictorial of the process that took place, which included our machining center lending a hand.  (Above: Gentle heating of speed sensor ring for removal during disassembly)  If you need a repair of your servo equipment, please call 1(800) 259-3181 for immediate service.  To browse our inventory, goto  Thank-you!


Jason heats up the speed sensor ring for removal.

Jason and Scott remove rotor assembly.

Greg lines up the Bridgeport end mill to make the cut.

Cutting the keyway on the shaft.

Installation of rotor assembly back into stator.

Placing opposite drive endbell (which was machined).

Speed sensor adjustment to match Fanuc spec.

Tightening fan assembly.

Getting set-up to run test motor.

Run testing for 2 hours on Fanuc spindle test stand.

The keyway cut perfectly to customers' need.

Finished job, ready to ship to customer.

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