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136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm

136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
** includes one plastic wheel (14x4.5mm)
 
Our PriceHK$98.00
CodeAMW-0142-001
Stock 8
Weight 10
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This tiny, cylindrical gearmotor consists of a coreless brushed DC motor and a 136:1 plastic planetary gearbox. The entire assembly has a diameter of just 6mm (0.24″) and an extremely light weight of 1.3g (0.046oz), making it a great actuator for miniature robots and very small mechanisms.

Key specs at 6V: 500RPM and 45mA free-run, 8oz-in (0.6kg-cm) and 400mA stall.




Overview

These tiny brushed DC gearmotors have a diameter of just 6mm and weigh just over a gram, which makes them great actuators for miniature robots and very small mechanisms. They consist of a coreless motor fastened to a 26:1 or 136:1 planetary gearbox by a small clip. The gears are made from liquid crystal polymers (LCPs), and gearbox’s nylon output shaft is compatible with our 14mm wheels.

The intended nominal operating voltage for these motors is 3V to 6V, though in general, these kinds of motors can be used at voltages outside this range (rotation typically starts between 0.2V and 0.3V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.

Since the gearmotor’s output shaft is nylon, there can be small variances in the diameter from unit to unit. These variations might cause press-fit attachments like our 14mm wheel to fit loosely in some instances. If you experience a loose fit, you could try swapping wheels or using a small dab of glue to help hold the wheel on.

Gearmotor dimensions

The following diagram shows the micro plastic gearmotor dimensions in mm. The planetary gearbox has a D-shaped plastic output shaft, which is 2mm in diameter with a section that is flattened by 0.5mm. The "D” portion of the shaft is 2.5mm long. The motor measures 6mm in diameter and 9mm in length, and the gearbox length, labeled "L” in the diagram below, depends on the gear ratio. The 26:1 gearbox is 7.1mm long, while the 136:1 option measures 9.4mm. The motor leads come with their tips pre-stripped and extend approximately 2cm (0.8″) from the back of the motor.

 

This dimension diagram is also available as a downloadable PDF (117k pdf).


Motor accessories

The micro plastic gearmotor’s output shaft is compatible with our 14mm wheels. We do not have any brackets for this gearmotor, and it does not have any mounting holes, but its compact size makes it easy to fasten with tape or glue. Alternatively, since this gearmotor is nearly the same size as a 1/4″ fuse, it can be mounted using standard 1/4″ (6mm) fuse clips, which can be found at places like Radio Shack and Digi-Key.

Sub-micro plastic planetary gearmotor with a 14×4.5mm wheel.
26:1 sub-micro plastic planetary gearmotor being held by a 1/4″ (6mm) fuse clip.




Dimensions

Size: 6D × 19L mm
Weight: 1.3 g
Shaft diameter: 2 mm


General specifications

Gear ratio: 136:1
Free-run speed @ 6V: 500 rpm
Free-run current @ 6V: 45 mA
Stall current @ 6V: 400 mA
Stall torque @ 6V: 8 oz·in




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14×4.5mm Wheel Pair for Sub-Micro Plastic Planetary Gearmotors
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