Tips: there are 2 models motor, the motor body size is almost same.
The shaft length and voltage range and speed has difference.
1.Brand
2.Model: 020 motor
3.Motor size: 9.5*18mm
4.Motor height: 18.8mm
5.Output shaft diameter: 1.5mm
6.Output shaft length: 4mm
7.Motor weight: 10g
Applicable voltage range: DC3V-­12V
Test voltge speed current
3.0V 9200RPM 80mA
5.0V 15000RPM 90mA
6.0V 16200RPM 90mA
9.0V 22200RPM 110mA
12V 27000RPM 120mA
B motor:
1.Brand
2.Model: 020 motor
3.Motor size: 9.63*17.90mm
4.Motor height: 18.7mm
5.Output shaft diameter: 1.5mm
6.Output shaft length: 9mm
7.Motor weight: 11g
[Motor model] 020SA­11130DA­32
Applicable voltage range: DC1.5V-­6V
Test voltge speed current
1.5V 6500RPM 60mA
3.0V 13000RPM 80mA
4.2V 18600RPM 90mA
4.5V 19800RPM 95mA
6.0V 25500RPM 110mA