Originally Posted by
gigaplex
Rotor strength, rotor length, rotor diameter, rotor internal diameter.
The number has nothing to do with the number of turns of the stator.
Their link took me here. Part number is 275. Dimensions are 12.5 outer diameter, 5.0 inner diameter, 25.3 length.
Think I misread this table at the link. I figured the part number for the rotor matched a number of turns, but it seems it's used on all of these motors.