This is the rule you are looking for !
9.7 The Rotor: Shaft diameter must be 3.175mm where the pinion gear locates. Only one piece, two pole Neodymium or Ferrite magnetic rotors are permitted (bonded or sintered). Magnet minimum length 23.0 mm, maximum 27.0 mm. Magnet minimum diameter 12.0mm, maximum 15.5mm. The original Rotor can be changed providing the replacement: complies with the above specifications, has been approved, is supplied by the motor manufacturer and is available retail.
|