Products for USB Sensing and Control

Products for USB Sensing and Control

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

42STH38 NEMA-17 Bipolar Gearless Stepper

ID: 3324_0

This affordable bipolar stepper with a rear shaft has a 1.8° step angle and 3.3 kg·cm of torque at low speeds.

$16.00

Quantity Available: 121

Qty Price
5 $15.36
10 $14.72
25 $14.40
50 $14.08
100 $13.76

This NEMA-17 motor generates 3.6 Kg-cm of holding torque at 1.7 Amps. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler. See the "Compatible Products" tab for a complete list of attachments.

When connected to a 1067 - PhidgetStepper Bipolar HC, the 3324 has a maximum speed of 4130 RPM. See the "Compatible Products" tab for wiring details.

Connection

This motor must be controlled by a constant current or chopper drive controller. You can find a list of suitable controllers on the Compatible Products tab. There you will also find compatible attachments such as encoders, mounting hardware, and transmission hardware.

Warning

warning Connecting the motor directly to a power supply will destroy the motor and void the warranty. If you want to check your motor make sure it is connected to a constant current / chopper drive controller.

Product Specifications

Motor Properties
Motor Type Bipolar Stepper
Manufacturer Part Number 42STH38-1684B
Step Angle 1.8°
Step Accuracy ± 5 %
Holding Torque 3.6 kg·cm
Rated Torque 3.3 kg·cm
Maximum Speed (w/1067 Motor Controller) 4130 RPM
Acceleration at Max Speed
(w/1067 Motor Controller)
1E+06 1/16 steps/sec²
Electrical Properties
Recommended Voltage 12 V DC
Rated Current 1.7 A
Coil Resistance 1.7 Ω
Phase Inductance 3.2 mH
Physical Properties
Shaft Diameter 5 mm
Rear Shaft Diameter 3.9 mm
Mounting Plate Size NEMA - 17
Weight 289 g
Number of Leads 4
Wire Length 300 mm

Motor Controllers

FUNCTIONAL

This motor must be controlled by a stepper motor controller. This diagram shows how to connect the motor wires to the controller to produce a clockwise rotation in the stepper motor when increasing position. To wire for counter-clockwise rotation when increasing position, reverse the red and blue wires.

Note: Make sure to unplug the power cord from the motor controller before switching wires around.

The following stepper controllers can be used to drive this motor:

Product Controller Properties Electrical Properties
Image Part Number Price Motor Position Resolution Stepper Velocity Resolution Stepper Velocity Max Available Current per Coil Max
1067_0 $95.00 116 Step (40-Bit Signed) 1 1/16 steps/sec 250000 1/16 steps/sec 4 A
STC1000_0 $75.00 116 Step (40-Bit Signed) 1 1/16 steps/sec 115000 1/16 steps/sec 4 A

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 1500 RPM

Shaft Couplers

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

Product Physical Properties
Image Part Number Price Inner Diameter Material Coupling Rated Torque Coupling Rated Speed Torsional Stiffness
3421_0 $7.50 5 mm Aluminium 4.1 kg·cm 10000 RPM 100 N·m/rad
3425_0 $7.50 5 mm Aluminium 60.7 kg·cm 16000 RPM 63 N·m/rad
TRM4311_0 $2.25 5 mm Aluminum 35.7 kg·cm 12000 RPM
TRM4333_0 $3.35 5 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 5mm bore pulleys and sprockets:

Product Physical Properties
Image Part Number Price Inner Diameter Number of Teeth
TRM4100_0 $2.25 5 mm 16

Mounting Brackets

Mounting this motor to a flat surface is easy with these metal mounting brackets. The holes on the bracket match those on the back of the motor, as well as the ones 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)

Here's a list of our bipolar stepper motors:

Product Motor Properties Electrical Properties Physical Properties Gearbox Properties
Image Part Number Price Step Angle Rated Torque Maximum Speed (w/1067 Motor Controller) Recommended Voltage Shaft Diameter Weight Gear Ratio
3303_0 $15.00 1.8° 4.2 kg·cm 4688 RPM 12 V DC 5 mm 332 g
3304_0 $15.00 3 34° 590 g·cm 4105 RPM 12 V DC 5 mm 171 g
3320_0 $16.00 1.8° 520 g·cm 426 RPM 12 V DC 5 mm 111.4 g
3321_0 $36.00 0.067° 14 kg·cm 120 RPM 12 V DC 6 mm 217.5 g 26 103121 : 1
3322_0 $38.00 0.018° 32 kg·cm 35 RPM 12 V DC 6 mm 243.6 g 99 10442057 : 1
3323_0 $16.00 1.8° 1.2 kg·cm 2340 RPM 12 V DC 5 mm 200 g
3324_0 $16.00 1.8° 3.3 kg·cm 4130 RPM 12 V DC 5 mm 289 g
3325_0 $40.00 0.35° 18 kg·cm 904 RPM 12 V DC 8 mm 457 g 5 211 : 1
3326_0 $42.00 0.13° 30 kg·cm 295 RPM 12 V DC 8 mm 502 g 13 212289 : 1
3327_0 $44.00 0.067° 30 kg·cm 174 RPM 12 V DC 8 mm 503 g 26 103121 : 1
3328_0 $46.00 0.035° 48 kg·cm 63 RPM 12 V DC 8 mm 564 g 50 43974913 : 1
3329_0 $48.00 0.018° 48 kg·cm 34 RPM 12 V DC 8 mm 564 g 99 10442057 : 1
3330_0 $28.00 0.9° 11.2 kg·cm 2250 RPM 12 V DC 14 695 g
3331_0 $20.00 1.8° 11 kg·cm 3000 RPM 12 V DC 14 686 g
3332_0 $70.00 0.42° 46.6 kg·cm 375 RPM 12 V DC 12 mm 1.2 kg 4 14 : 1
3333_0 $72.00 0.12° 150 kg·cm 116 RPM 12 V DC 12 mm 1.3 kg 15 310 : 1
3334_0 $74.00 0.023° 240 kg·cm 25 RPM 12 V DC 12 mm 1.5 kg 76 4964 : 1
3335_0 $60.00 1.8° 30 kg·cm 200 RPM 30 V DC 12 mm 1.8 kg
3336_0 $80.00 1.8° 106 kg·cm 1500 RPM 30 V DC 58 5.2 kg
3340_0 $20.00 0.9° 3.3 kg·cm 2344 RPM 12 V DC 5 mm 288 g