This device is a 36mm DC6~12V 2-phase 4-wire stepper motor 0.9 degree steps.
SPECIFICATIONS:
Motor diameter: 36mm
Motor height: 20mm
Output shaft diameter: 4 mm
Output shaft length: 4.5 mm
Step angle: 0.9 degrees (400 steps)
Resistance: 13 Ω
Lead: two phase four wire
Wire length: 80mm, terminated by 4 pin JST-PH 2mm connector, covered in transparent spiral wrap
(red line, blue line are phase a, orange red line and black line are phase B)
6V short circuit current: 0.59a
Rated current: 0.59A per phase
Weight: 100g
Gear parameters: 8.4mm × 3.3mm (number of teeth: 15)