dsergison
Diamond
- Joined
- Oct 23, 2003
- Location
- East Peoria, IL, USA
Background:
I've been asked for input on designing / retrofitting an very fancy thermal environmental test machine to handle much higher speeds for testing speed sensors.
They currently have an air bearing spindle belt driven to 8k rpm. Imagine a VMC spindle but poking up into the bottom of an insulated box. They mount various tone rings to it and test new speed sensors. A computer can move a motor controlled slide carrying sensors to test them at different air gaps / spindle speeds /temperatures etc...
They would LIKE a similar unit to go to 100k rpm, or at least 50k.... no clearly defined requirements yet.
I said why not just put a high speed mini machine tool spindle inside the existing box and reuse all the other apparatus. Either Electric or air turbine, maybe even a planetary type spindle speeder except that the existing spindle interface is not "friendly" to that.
I would have my targets, which are +/- 10mm diameter shafts with notches or flats balanced of course. they can have reduced 8mm shanks or whatever handy for the spindle collet interface.
Now my question:
Ballpark- what does a "high speed electric motor spindle" and drive cost? -from a major manufacturer like NSK.
like these, or similar. http://www.nskamericacorp.com/Catalog/NSK_Catalog_2017/105/
thanks
I've been asked for input on designing / retrofitting an very fancy thermal environmental test machine to handle much higher speeds for testing speed sensors.
They currently have an air bearing spindle belt driven to 8k rpm. Imagine a VMC spindle but poking up into the bottom of an insulated box. They mount various tone rings to it and test new speed sensors. A computer can move a motor controlled slide carrying sensors to test them at different air gaps / spindle speeds /temperatures etc...
They would LIKE a similar unit to go to 100k rpm, or at least 50k.... no clearly defined requirements yet.
I said why not just put a high speed mini machine tool spindle inside the existing box and reuse all the other apparatus. Either Electric or air turbine, maybe even a planetary type spindle speeder except that the existing spindle interface is not "friendly" to that.
I would have my targets, which are +/- 10mm diameter shafts with notches or flats balanced of course. they can have reduced 8mm shanks or whatever handy for the spindle collet interface.
Now my question:
Ballpark- what does a "high speed electric motor spindle" and drive cost? -from a major manufacturer like NSK.
like these, or similar. http://www.nskamericacorp.com/Catalog/NSK_Catalog_2017/105/
thanks