120:1 Mini Plastic Gearmotor 90-Degree 2mm Spline Output【限量】

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Overview
This brushed DC gearmotor is very compact and weighs only 0.7 ounces (19.5 grams) — perfect for building a quick, miniature robot. The recommended operating voltage range for this motor is 3 to 6 V, though the gearmotor can start rotating at voltages as low as 0.6 V. At 4.5 V, the motor has a free-run current of 80 mA and a stall current of 800 mA; this relatively low current draw makes this a great match for our qik 2s9v1 dual serial motor controller and programmable Orangutan robot controllers. The stall current, torque, and rotation speed will approximately scale linearly with the motor voltage. The gearbox is protected by a built-in safety clutch that will typically slip before gear teeth can shear.

Dimensions
You can download a pdf version of this drawing here (100k pdf).
This gearmotor features a splined, chrome-finish output shaft with a 2mm-crest diameter. This shaft can be used with custom wheels or with our adapter for LEGO wheels. The gearbox output shaft is perpendicular to the motor shaft.

Gearmotor Versions
This gearmotor is available with two different output shaft orientations: offset from but parallel to the motor shaft or perpendicular to the motor shaft. It is also available with a 3 mm D-shaped output shaft that matches those on our micro metal gearmotors and works with the Pololu wheels and 3mm universal aluminum mounting hub. We offer two gear ratios for the D-shaft versions: 120:1 and 180:1. In all, we offer six different versions of this gearmotor:

• 120:1 Mini Plastic Gearmotor Offset 2mm Spline Output
• 120:1 Mini Plastic Gearmotor 90-Degree 2mm Spline Output
• 120:1 Mini Plastic Gearmotor 90-Degree 3mm D-Shaft Output
• 120:1 Mini Plastic Gearmotor Offset 3mm D-Shaft Output
• 180:1 Mini Plastic Gearmotor 90-Degree 3mm D-Shaft Output
• 180:1 Mini Plastic Gearmotor Offset 3mm D-Shaft Output

Dimensions

General specifications

Notes:

• 1

See drawing for detailed dimensions.

• 2

Measurement is diameter of spline crest.

• 3

Note: the gearbox's built-in clutch might start slipping at a lower torque.
 

• 120:1 Mini Plastic Gearmotor 90-Degree 2mm Spline Output x 1