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

This DC motor has an encoder, a 100:1 gearbox, a rated speed of 23 RPM and rated torque of 1.63 Kg·cm.

Discontinued

The 3257E is a 12 volt gear motor, generating 1.63 Kg-cm of torque at 23 RPM. It is very efficient for its size, so less power is lost in the form of heat.

This motor comes equipped with an E4P US Digital Encoder, which keeps track of the motor's rotation, allowing you to control your motor precisely.

This family of motors (3254, 3255, 3256, 3257) have the same gearbox type and mounting metrics as the (3258, 3259, 3260) family of motors.

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

Motor Type | DC Motor with Encoder |

Output Power (Mechanical) | 590 mW |

Maximum Speed at Rated Voltage | 23 RPM |

Rated Torque | 1.6 kg·cm |

Stall Torque | 10.2 kg·cm |

Electrical Properties | |

Rated Voltage | 12 V DC |

Rated Current | 90 mA |

Stall Current | 260 mA |

Physical Properties | |

Shaft Diameter | 6 mm |

Weight | 139 g |

Recommended Wire Size (Motor) | 20 - 26 AWG |

Gearbox Specifications | |

Gearbox Type | Spur |

Gear Ratio | 100 : 1 |

Number of Gear Trains | 4 |

Maximum Strength of Gears | 12 kg·cm |

Shaft Maximum Axial Load | 35 N |

Shaft Maximum Radial Load | 25 N |

Encoder Specifications | |

Encoder Resolution | 360 CPR |

Connector Type | E4P |

Current Consumption Min | 27 mA |

Supply Voltage Min | 4.5 V DC |

Supply Voltage Max | 5.5 V DC |

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'll need to solder wires to the contacts on the back of the motor and connect those 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_0B | $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 | |

DCC1001_0 | $40.00 | 1 | 0.001 Duty Cycle | 0.1 Duty Cycle/s | 2 A | VINT |

If you decide to use a motor controller without an encoder input, you'll need an interface to read data coming from the quadrature encoder.

Product | Encoder Interface | |||
---|---|---|---|---|

Image | Part Number | Price | Number of Encoder Inputs | Count Rate Max |

1047_1B | $75.00 | 4 | 1E+06 pulses/s | |

1057_2B | $50.00 | 1 | 2E+06 pulses/s | |

ENC1000_0 | $15.00 | 1 | 400000 pulses/s |

This motor comes with a cable that you can use to connect the encoder to an encoder interface. If you need a replacement, you can get one here:

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

Image | Part Number | Price | Cable Length | Cable Gauge |

3032_0 | $2.00 | 500 mm | 28 AWG |

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 |

3422_0 | $7.50 | 6 mm | Aluminium | 4.1 kg·cm | 10000 RPM | 100 N·m/rad | |

3426_0 | $7.50 | 6 mm | Aluminium | 60.7 kg·cm | 16000 RPM | 63 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 6mm bore pulleys and sprockets:

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

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

TRM4162_0 | $2.00 | 6 mm | 22 |

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

Image | Part Number | Price | Maximum Speed at Rated Voltage | 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 | |

3260_0 | $15.00 | 73 RPM | 6.1 kg·cm | 6 mm | 284 g | 50 : 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 | |

3264_1 | $20.50 | 28 RPM | 8.5 kg·cm | 6 mm | 192 g | 139 ^{184}⁄_{1221} : 1 |
Planetary | |

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

3266_0 | $42.00 | 175 RPM | 1.9 kg·cm | 8 mm | 464 g | 13 ^{212}⁄_{289} : 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 | 5.1 kg·cm | 12 mm | 1.3 kg | 4 ^{1}⁄_{4} : 1 |
Planetary | |

3270_1 | $66.00 | 192 RPM | 14.3 kg·cm | 12 mm | 1.5 kg | 12 ^{24}⁄_{25} : 1 |
Planetary | |

3271_1 | $66.00 | 139 RPM | 20.4 kg·cm | 12 mm | 1.5 kg | 18 ^{1}⁄_{16} : 1 |
Planetary | |

3272_1 | $72.00 | 53 RPM | 51 kg·cm | 12 mm | 1.7 kg | 46 ^{82}⁄_{125} : 1 |
Planetary | |

3273_1 | $72.00 | 33 RPM | 82.6 kg·cm | 12 mm | 1.7 kg | 76 ^{49}⁄_{64} : 1 |
Planetary | |

3274_1 | $76.00 | 15 RPM | 173 kg·cm | 12 mm | 2 kg | 167 ^{601}⁄_{625} : 1 |
Planetary |

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

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

3254E_0 | $40.00 | 230 RPM | 200 g·cm | 6 mm | 131 g | 10 : 1 | Spur | |

3255E_0 | $40.00 | 127 RPM | 310 g·cm | 6 mm | 136 g | 18 : 1 | Spur | |

3256E_0 | $41.00 | 46 RPM | 820 g·cm | 6 mm | 140 g | 50 : 1 | Spur | |

3261E_0 | $48.00 | 1080 RPM | 240 g·cm | 6 mm | 147 g | 3 ^{12}⁄_{17} : 1 |
Planetary | |

3262E_0 | $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 | |

3264E_1 | $50.50 | 28 RPM | 8.5 kg·cm | 6 mm | 195 g | 139 ^{184}⁄_{1221} : 1 |
Planetary | |

3265E_0 | $68.00 | 670 RPM | 540 g·cm | 8 mm | 419 g | 3 ^{12}⁄_{17} : 1 |
Planetary | |

3266E_0 | $72.00 | 175 RPM | 1.9 kg·cm | 8 mm | 467 g | 13 ^{212}⁄_{289} : 1 |
Planetary | |

3267E_0 | $73.00 | 49 RPM | 6.6 kg·cm | 8 mm | 529 g | 50 ^{801}⁄_{895} : 1 |
Planetary |