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Categorie Prodotti al prezzo di costo Pololu Mini Plastic Gearmotors



120:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output

COD : PO-1125
120:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output
8,78 € (excl. VAT)
10,71 € (incl. IVA)
Disponibilità :
on-order.gif spedito in 10-15 giorni

quantità disponibile: 399

Overview

These brushed DC gearmotors are compact and affordable — perfect for building a quick, miniature robot. They are intended for use at 4.5 V, though in general, these kinds of motors can run at voltages above and below this nominal voltage, so they should operate comfortably in the 3 V to 6 V range (rotation can start at voltages as low as 0.5 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor. The plastic gearbox is protected by a built-in safety clutch that will typically slip before the gear teeth can shear (typically when the load exceeds around 25 oz-in, or 2 kg-cm).

The mini plastic gearmotor family offers two output shaft orientations relative to the motor shaft (offset and 90°), two motor options (normal and high-power, or HP for short), and two gearbox options (120:1 and 180:1). The 120:1 versions are white and the 180:1 versions are yellow:

180:1 mini plastic gearmotor offset 3mm D-shaft output.

120:1 mini plastic gearmotor, 90-degree 3mm D-shaft output, extended motor shaft.

Some versions of these gearmotors are also available with an additional 1.5 mm-diameter output shaft that protrudes from the rear of the motor. This 5 mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add an encoder, such as our magnetic encoder for mini plastic gearmotors, to provide motor speed or position feedback:

Magnetic Encoder Kit for Mini Plastic Gearmotors assembled on mini plastic gearmotors with extended motor shafts.

Please see the mini plastic gearmotor comparison table for detailed specifications of all our mini plastic gearmotors. This dynamically-sortable table can help you find the gearmotor that offers the best blend of speed, torque, and current-draw for your particular application. A more basic comparison table is available below:


Motor Type Stall
Current
@ 4.5 V
No-Load
Speed
@ 4.5 V
Stall Torque
@ 4.5 V
src=

90° output
src=

90° output + motor shaft
src=

offset output
src=

offset output + motor shaft
high-power
(HP)
1250 mA 150 RPM 25 oz-in 120:1 mini HP 120:1 mini HP 120:1 mini HP 120:1 mini HP
low-power 800 mA 120 RPM 20 oz-in 120:1 mini 120:1 mini 120:1 mini 120:1 mini
80 RPM 30 oz-in 180:1 mini 180:1 mini

Note: The stall torque values listed are approximate, and the built-in safety clutch might start slipping at lower torques.

The gearmotors in the table above all have a 3 mm diameter D-shaft output. These shafts are just like the ones on our micro metal gearmotors and are compatible with many Pololu wheels and our 3 mm universal mounting hubs. We also carry two low-power, 120:1 mini plastic gearmotors with 2 mm diameter spline outputs: 90° 2mm spline output and offset 2mm spline output. These gearmotors all work with our wide and tall mounting brackets for mini plastic gearmotors.

Details for item #1125

This item has a low-power motor (800 mA stall current), a 120:1 gearbox, and a 3 mm diameter “D”-shaped output shaft that is offset from but parallel to the motor shaft. The motor shaft does not extend past the base of the motor. See the dimension diagram (77k pdf) of this gearmotor for more information.

Exact gear ratio: ``(22×38×44×26×30) / (10×11×11×22×9) ~~ bb(119.76)``

Motor Accessories

Mini Plastic Gearmotor, 90° 3mm D-shaft Output with Pololu Wheel 90×10mm.

Mini plastic gearmotor offset 3mm D-shaft output with Pololu wheel.

Mini Plastic Gearmotor, 90° 3mm D-Shaft Output with Pololu Wheel 32×7mm.

  • Mounting brackets: Our wide and tall mounting brackets are specifically designed to securely mount these mini plastic gearmotors. Both brackets work with both offset and 90° gearmotor versions, and the two brackets each allow for different mounting options.

60×8mm Pololu wheel and 90° mini plastic gearmotor mounted with tall mini plastic gearmotor bracket (with spacer).

60×8mm Pololu wheel and offset mini plastic gearmotor mounted with a tall mini plastic gearmotor bracket (with spacer).

80×10mm Pololu wheel and offset mini plastic gearmotor mounted with a wide mini plastic gearmotor bracket.

The Magnetic Encoder Kit for Mini Plastic Gearmotors works with our Tall (left) and Wide (right) Mini Plastic Gearmotor Brackets.

  • Motor controllers: We offer a number of motor controllers that make it easy to drive these mini plastic gearmotors.
    • The Qik 2s9v1 Dual Serial Motor Controller allows variable speed and direction control of two small, brushed DC motors using a simple serial interface. An Arduino library is available to make communication easier and multiple units can be daisy-chained together if you need to independently control many motors from a single serial bus.
    • The programmable Baby Orangutan B-328 Robot Controller combines a programmable ATmega328P AVR microcontroller and dual motor driver all in a single, very compact, package and makes interfacing with the motor drivers simple when you use our Pololu AVR library.

Pololu qik 2s9v1 dual serial motor controller (older version with large silver electrolytic capacitor).

Baby Orangutan B-48/B-168/B-328.

DRV8835 dual motor driver carrier.

DRV8838 Single Brushed DC Motor Driver Carrier.

MAX14870 Single Brushed DC Motor Driver Carrier.

The 120:1 gear ratio versions have white plastic bodies and the 180:1 gear ratio versions have yellow plastic bodies (see the main product picture).


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ROBOT DOMESTICI INDUSTRIES di ARMANDO PALIANI - Via Cornelio Labeone, 76 - 00174 Roma (RM)
P.I. IT12960231004 - C.F. PLNRND74R03G763Q - REA di Roma n. RM 1413309
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