Stepper motor parameters:
Diameter: 8MM, Height: 8.2MM
Type: two-phase four-wire
Long axis (Blue: A+, Black: A-. Red: B+, White: B-)
Short axis (Purple: A+, Yellow: B-. Orange: B+, Green: B-)
Phase resistance: 39.2 ohms
6 V short circuit current: 0.14 A (estimated phase voltage is 5V-6V, drive current is about 0.12A)
Output shaft: 1.5MM
Output shaft length: long shaft 4MM, short shaft 3.5MM.
Copper gear outer diameter: 2.2 MM (9 teeth, 0.2 module)
Weight: 6 grams