Approximated dimensions are 7quot; dia, 14quot; length.
I assume you are looking for a replacement. This seems like a spindle motor for a NC machine, but my search didn't find one with all the characteristics mentioned. The clue is 8000 rpm. This is probably a 4 pole motor, so frequency is up to 266 Hz AC supply. It means it works with a variable speed drive, so may be married to that closely (I mean, I am not sure if you can substitute). It may even have speed sensing associated. It is this drive that produces the 460V and the appropriate frequency for the rpm which will be related to V/Hz. These motors are usually meant to be smooth running. Check the spec you gave carefully. It seems too small for 75kW and too fast for 75kW too. Still @ 8000rpm this may be possible. It may be that you can only buy a replacement from the manufacturer/supplier of the NC machine at great expense. Consider a motor rewind and new bearings, whatever (get it refurbished). This might not be so difficult or expensive, but once again, 75kW @ 8000 RPM? Maybe the re-winder needs to know what they are doing for that sort of balance. Some of these have exotic bearings too.
I don't know, but this is asking a lot. Let us know if you find a supplier and something you can afford.
