Products for **USB Sensing** and **Control**

ID: 3268_0

This DC motor has a 139:1 gearbox, a rated speed of 18 RPM and rated torque of 17.3 Kg·cm.

Replaced by 3268_1

The 3268 is a 12 volt gear motor, generating 17.3 Kg-cm of torque at 18 RPM. Since this motor has a lower power output for its size, you can expect it to have a longer lifespan than other motors.

The planetary gearbox on this motor is more sophisticated than a typical spur gearbox and will provide greater efficiency, higher torque, and quieter motor operation.

The torque this motor produces when it stalls exceeds the rated strength of the gearbox. This means that stalling or very heavily loading this motor can cause serious damage to the gearbox. To avoid damage, avoid sudden loads or any load higher than the Maximum Strength of Gears spec. |

Motor Properties | |
---|---|

Motor Type | DC Motor |

Output Power (Mechanical) | 3.8 W |

Rated Speed | 18 RPM |

Rated Torque | 17.3 kg·cm |

Stall Torque | 128 kg·cm |

Electrical Properties | |

Rated Voltage | 12 V DC |

Rated Current | 650 mA |

Stall Current | 2.4 A |

Physical Properties | |

Shaft Diameter | 8 mm |

Wire Length | 350 mm |

Weight | 526 g |

Gearbox Specifications | |

Gearbox Type | Planetary |

Gear Ratio | 139 ^{184}⁄_{1221} : 1 |

Number of Gear Trains | 3 |

Maximum Strength of Gears | 61 kg·cm |

Shaft Maximum Axial Load | 50 N |

Shaft Maximum Radial Load | 35 N |

Backlash Error | 3° |

Customs Information | |

Canadian HS Export Code | 8501.10.00 |

American HTS Import Code | 8501.10.40.60 |

Country of Origin | CN (China) |

DC motors can be simply connected to a power supply according to their rated voltage in order to make them run, but if you want to have control over direction, velocity, and acceleration in real-time, you'll need to use a motor controller. In order to connect this motor to a controller, you can connect the wires to the motor terminal on the controller. Don't worry about wiring the motor backwards; doing so will only reverse the direction of rotation.

Product | Controller Properties | Electrical Properties | Board Properties | ||||
---|---|---|---|---|---|---|---|

Image | Part Number | Price | Number of Motor Ports | Velocity Resolution | Acceleration Resolution | Continuous Motor Current Max | Controlled By |

1064_1B | $115.00 | 2 | 0.79 % Duty Cycle | 1.9 % Duty Cycle/s | (per motor) 14 A | USB (Mini-USB) | |

1065_1B | $75.00 | 1 | 0.39 % Duty Cycle | 24.5 % Duty Cycle/s | 5 A | USB (Mini-USB) | |

DCC1000_0 | $75.00 | 1 | 0.001 Duty Cycle | 1 % Duty Cycle/s | 25 A | VINT | |

DCC1002_0 | $40.00 | 1 | 0.001 Duty Cycle | 0.1 Duty Cycle/s | 4 A | VINT | |

DCC1003_0 | $60.00 | 2 | 0.001 Duty Cycle | 0.1 Duty Cycle/s | (per motor) 4 A | VINT |

If you need to connect the main shaft of this motor to another device with a shaft, you can use a shaft coupler:

Product | Physical Properties | ||||||
---|---|---|---|---|---|---|---|

Image | Part Number | Price | Inner Diameter | Material | Coupling Rated Torque | Coupling Rated Speed | Torsional Stiffness |

3423_0 | $7.50 | 8 mm | Aluminium | 4.1 kg·cm | 10000 RPM | 100 N·m/rad | |

TRM4313_0 | $2.80 | 8 mm | Aluminum | 35.7 kg·cm | 12000 RPM | — | |

TRM4334_0 | $3.35 | 8 mm | Aluminium | 10 kg·cm | 8000 RPM | 110 N·m/rad |

If you're using this motor to drive a rotary system that requires a lot of torque, you may be interested in pulleys and sprockets. By using a two pulleys or sprockets of different sizes, you can increase the gear ratio of the motor. Pulleys and sprockets can also be used to transmit the motor's rotation over a long distance. For more guidance on building a transmission system, visit our Rotary Motion Primer. Here is a list of our 8mm bore pulleys and sprockets:

Product | Physical Properties | |||
---|---|---|---|---|

Image | Part Number | Price | Inner Diameter | Number of Teeth |

TRM4102_0 | $2.25 | 8 mm | 22 | |

TRM4103_0 | $2.25 | 8 mm | 32 | |

TRM4104_0 | $2.45 | 8 mm | 44 | |

TRM4105_0 | $3.00 | 8 mm | 60 | |

TRM4106_0 | $3.70 | 8 mm | 80 | |

TRM4111_0 | $2.25 | 8 mm | 12 | |

TRM4112_0 | $3.15 | 8 mm | 24 | |

TRM4113_0 | $4.45 | 8 mm | 34 | |

TRM4114_0 | $6.70 | 8 mm | 50 | |

TRM4135_0 | $1.85 | 8 mm | 10 | |

TRM4158_0 | $3.25 | 8 mm | 44 |

Mounting this motor to a flat surface is easy with these metal mounting brackets. The holes on the bracket match those on the front of the gearbox. The following brackets will fit the mounting holes on this motor:

Product | Physical Properties | |||
---|---|---|---|---|

Image | Part Number | Price | Mounting Plate Size | Material |

3338_0 | $3.50 | NEMA - 17 | Mild Steel (Coated) |

Systems with heavy loads or pulley/sprocket assemblies often put a lot of sideways strain on the motor shaft. If you're using this motor to drive such a system, you can use rotary bearings to protect the motor:

Product | Motor Properties | Physical Properties | Gearbox Specifications | |||||
---|---|---|---|---|---|---|---|---|

Image | Part Number | Price | Rated Speed | Rated Torque | Shaft Diameter | Weight | Gear Ratio | Gearbox Type |

3254_0 | $10.00 | 230 RPM | 200 g·cm | 6 mm | 128 g | 10 : 1 | Spur | |

3255_0 | $10.00 | 127 RPM | 310 g·cm | 6 mm | 133 g | 18 : 1 | Spur | |

3256_0 | $11.00 | 46 RPM | 820 g·cm | 6 mm | 137 g | 50 : 1 | Spur | |

3257_0 | $11.00 | 23 RPM | 1.6 kg·cm | 6 mm | 136 g | 100 : 1 | Spur | |

3261_0 | $18.00 | 1080 RPM | 240 g·cm | 6 mm | 144 g | 3 ^{12}⁄_{17} : 1 |
Planetary | |

3262_1 | $18.00 | 285 RPM | 900 g·cm | 6 mm | 170 g | 13 ^{212}⁄_{289} : 1 |
Planetary | |

3263_1 | $20.50 | 78 RPM | 3.1 kg·cm | 6 mm | 193 g | 50 ^{801}⁄_{895} : 1 |
Planetary | |

3265_0 | $38.00 | 670 RPM | 540 g·cm | 8 mm | 416 g | 3 ^{12}⁄_{17} : 1 |
Planetary | |

3266_1 | $42.00 | 175 RPM | 1.9 kg·cm | 8 mm | 464 g | 13 ^{212}⁄_{289} : 1 |
Planetary | |

3267_0 | $43.00 | 49 RPM | 6.6 kg·cm | 8 mm | 526 g | 50 ^{801}⁄_{895} : 1 |
Planetary | |

3267_1 | $43.00 | 49 RPM | 6.6 kg·cm | 8 mm | 526 g | 50 ^{801}⁄_{895} : 1 |
Planetary | |

3268_1 | $43.00 | 18 RPM | 17.3 kg·cm | 8 mm | 526 g | 139 184/1221 : 1 | Planetary | |

3269_3 | $69.00 | 588 RPM | 4.4 kg·cm | 12 mm | 1.3 kg | 4 ^{1}⁄_{4} : 1 |
Planetary | |

3270_2 | $66.00 | 192 RPM | 13.3 kg·cm | 12 mm | 1.5 kg | 12 ^{24}⁄_{25} : 1 |
Planetary | |

3272_2 | $72.00 | 53 RPM | 43.8 kg·cm | 12 mm | 1.7 kg | 46 ^{82}⁄_{125} : 1 |
Planetary | |

3273_2 | $72.00 | 33 RPM | 71.4 kg·cm | 12 mm | 1.7 kg | 76 ^{49}⁄_{64} : 1 |
Planetary | |

3274_2 | $76.00 | 15 RPM | 136.6 kg·cm | 12 mm | 2 kg | 167 ^{601}⁄_{625} : 1 |
Planetary | |

DCM4000_0 | $40.00 | 3280 RPM | 4 kg·cm | 8 mm | 1.4 kg | — | — | |

DCM4001_0 | $80.00 | 772 RPM | 12.2 kg·cm | 12 mm | 1.9 kg | 4.25:1 | Planetary | |

DCM4002_0 | $82.00 | 182 RPM | 47 kg·cm | 12 mm | 2.1 kg | 18:1 | Planetary | |

DCM4003_0 | $84.00 | 50 RPM | 153 kg·cm | 12 mm | 2.2 kg | 65:1 | Planetary | |

DCM4004_0 | $50.00 | 2800 RPM | 8.7 kg·cm | 10 mm | 2.7 kg | — | — | |

DCM4005_0 | $60.00 | 2900 RPM | 11.4 kg·cm | 10 mm | 3.3 kg | — | — |

Product | Motor Properties | Physical Properties | Gearbox Specifications | |||||
---|---|---|---|---|---|---|---|---|

Image | Part Number | Price | Rated Speed | Rated Torque | Shaft Diameter | Weight | Gear Ratio | Gearbox Type |

3261E_1 | $48.00 | 1080 RPM | 240 g·cm | 6 mm | 147 g | 3 ^{12}⁄_{17} : 1 |
Planetary | |

3262E_1 | $48.00 | 285 RPM | 900 g·cm | 6 mm | 174 g | 13 ^{212}⁄_{289} : 1 |
Planetary | |

3263E_1 | $50.50 | 78 RPM | 3.1 kg·cm | 6 mm | 193 g | 50 ^{801}⁄_{895} : 1 |
Planetary |