Reg:Servo motor to be used a spindle motor

[keviv2484]

Hi everyone,I just want to know whether a servo motor in FANUC can be used as a spindle motor??

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[tienduongcnc]

hi keviv2484,

I've seen servo motor in STAR lathe machines, they were used as drilling spindle.
But I think it's rarely being used this way.
Spindle motors give higher rotation speed & torque for cutting purpose.

[underthetire]

Yes they can, if your machine expectations permit it. They work quite well actually.

[Al_The_Man]

Hi everyone,I just want to know whether a servo motor in FANUC can be used as a spindle motor??

AC or DC? The DC are fairly easy as Drives are quite flexible, The Fanuc AC has proprietary commutation, so either needs a convertor, or as I did, change the encoder to BLDC type with standard commutation tracks. I Used a ±10vdc drive so I was able to use a A-M-C BLDC drive.
Al.

[Larken]

What rpm are you planning on running ?
The bearings in a spindle motor are rated for high rpm, not in a servo. Also the balancing of a 10,000 rpm Fanuc spindle motor is a lot more precise than a servo.