Hi Roy,
That's interesting the price difference you found for the NSK parts. My catalogue has the E2550 drive (NE145, 125w) at €1072.00, and the E3000 drive (NE211, 350w) at €1271.00. I do know there was a recent price rise though (about 20%!!). Anyway, as you say - it's expensive. If you can use the Maxon to get the same result, why not.
As for the spindle, yes the NR3060S would be very nice. Just a thought though - since you are looking at max. 30,000 rpm, would the NR-H2532 with steel bearings do? It might be more forgiving than ceramic bearings, and it is significantly cheaper.
Looking forward to seeing your design!
Best regards,
jason |