22S28-205E.1 is a 10mm x 2mm Coreless Motor from Portescap. It has a brushless motor construction with a maximum operating speed of 17,000 rpm and a holding torque of 0.015 mNm (0.21 oz-in). The motor also has a high ripple, low-inductance winding design. It is typically used in medical, dental and industrial applications.