This torque type motor is advantageous for narrow courses, technical courses, and courses with ups and downs. The green end bell is a landmark.
Basic specifications: Appropriate voltage: 2.4 to 3.0V Recommended load torque: 1.5 to 2.0mN ・ m Rotation speed: 19900 to 23600r / min Current consumption: 2.5 to 3.3A | 
