DC Motor Controllers

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. This motor requires higher voltage than our small motors, so only the following controllers are suitable:

Product			Electrical Properties		Controller Properties			Board Properties
Image	Part Number	Price	Continuous Motor Current Max	Supply Voltage Max	Number of Motor Ports	Velocity Resolution	Acceleration Resolution	Controlled By
	DCC1000_0	$75.00	25 A	30 V DC	1	0.001 Duty Cycle	1 % Duty Cycle/s	VINT

Encoders

The rear shaft of this motor can be equipped with an encoder for applications where you need to keep track of the exact position, velocity, or acceleration of the motor. The mounting holes on the back of this motor are compatible with the following encoders:

Product			Encoder Properties
Image	Part Number	Price	Output Circuit Type	Encoder Resolution	Encoder Speed Max
	3531_0	$25.00	Push-Pull (Single-Ended)	300 CPR	6000 RPM
	ENC4109_0	$10.00	Push-Pull	40 CPR	6000 RPM

Shaft Couplers

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

Pulleys and Sprockets

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

Rotary Bearings

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			Physical Properties		Mechanical Properties
Image	Part Number	Price	Inner Diameter	Bearing Type	Static Load	Dynamic Load
	TRM4500_0	$4.00	8 mm	Rotary Shaft (Flanged)	1.3 kN	3.3 kN
	TRM4501_0	$4.25	8 mm	Rotary Shaft (Pillow Block)	1.3 kN	3.3 kN

Product Specifications

Documents

• DC Motor and Controller Primer
• Mechanical Drawing
• Torque Curve

Projects

• An application guide on DC Motors - PID Control (October 29, 2013)

Here's a list of our DC motors:

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
	3272_2	$72.00	53 RPM	51 kg·cm	12 mm	1.7 kg	46 82⁄125 : 1	Planetary
	3273_2	$72.00	33 RPM	82.6 kg·cm	12 mm	1.7 kg	76 49⁄64 : 1	Planetary
	3274_2	$76.00	15 RPM	173 kg·cm	12 mm	2 kg	167 601⁄625 : 1	Planetary
	DCM4000_0	$40.00	3280 RPM	2.5 kg·cm	8 mm	1.4 kg	—	—
	DCM4001_0	$80.00	772 RPM	10.6 kg·cm	12 mm	1.9 kg	4.25:1	Planetary
	DCM4002_0	$82.00	182 RPM	45 kg·cm	12 mm	2.1 kg	18:1	Planetary
	DCM4003_0	$84.00	50 RPM	162.5 kg·cm	12 mm	2.2 kg	65:1	Planetary
	DCM4004_0	$50.00	3000 RPM	4.4 kg·cm	10 mm	2.7 kg	—	—
	DCM4005_0	$60.00	3563 RPM	6.1 kg·cm	10 mm	3.3 kg	—	—

Here's a list of DC motors with encoders attached:

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
	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_1	$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
	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