42STH38 NEMA-17 Bipolar Precision Gearless Stepper

42STH38 NEMA-17 Bipolar Precision Gearless Stepper

Manufacturer :

PN 3340_0 Category

External Url:

Loading...
This precision bipolar stepper with rear shaft has a 0.9?° step angle and 3.3 kg?·cm of torque at low speeds.

190.00

99999 in stock

Loading...

All the reasons to purchase from us

  • Professional customer service
  • Attractive prices
  • Fast delivery times!
Warranty: 12 months

Delivery time: up to 10 business days
image_pdfimage_print

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 hardware section for a list of compatible accessories.

This motor is particulary suited for precision applications due to its 0.9?° step angle.

When connected to a 1067 – PhidgetStepper Bipolar HC, the 3340 has a maximum speed of 2344 RPM.

Connection

The following table shows how to connect the motor wires to the board connectors 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.

Wire Color Black Green Red Blue
Board Connector A B C D

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

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. See the hardware section for a list of compatible devices.

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 42STH38-1684MB-12
Step Angle 0.9?°
Step Accuracy ?± 5 %
Holding Torque 3.6 kg?·cm
Rated Torque 3.3 kg?·cm
Maximum Speed (w/1067 Motor Controller) 2344 RPM
Acceleration at Max Speed
(w/1067 Motor Controller)
1E+06 1/16 steps/sec?²
Electrical Properties
Recommended Voltage 12 V DC
Rated Current 1.7 A
Coil Resistance 1.7 ?©
Phase Inductance 4.1 mH
Physical Properties
Shaft Diameter 5 mm
Rear Shaft Diameter 3.9 mm
Mounting Plate Size NEMA – 17
Weight 288 g
Number of Leads 4
Wire Length 300 mm

Documents

  • Stepper Motor and Controller Primer
  • Mechanical Drawings

Projects

  • Motor Music: Play MIDI Files using Phidget Stepper Motors (June 1, 2015)
  • How To Avoid Resonance Issues in Stepper Motors (July 28, 2014)
  • Steppers with Encoders: When Open-loop Control Is Not Enough (May 13, 2014)

This stepper motor can be used with the following motor controllers:

Product Controller Properties Electrical Properties
Part Number Motor Position Resolution Stepper Velocity Resolution Stepper Velocity Max Available Current per Coil Max
1067_0B 116 Step (40-Bit Signed) 1 1/16 steps/sec 250000 1/16 steps/sec 4 A
STC1000_0 116 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
Part Number Output Circuit Type Encoder Resolution Encoder Speed Max
3531_0 Push-Pull (Single-Ended) 300 CPR 6000 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
Part Number Inner Diameter Material Coupling Rated Torque Coupling Rated Speed Torsional Stiffness
3421_0 5 mm Aluminium 4.1 kg?·cm 10000 RPM 100 N?·m/rad
3425_0 5 mm Aluminium 60.7 kg?·cm 16000 RPM 63 N?·m/rad
TRM4311_0 5 mm Aluminum 35.7 kg?·cm 12000 RPM ?€”
TRM4333_0 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
Part Number Inner Diameter Number of Teeth
TRM4100_0 5 mm 16

 

Print Friendly, PDF & Email

Get back to me about this product

All the reasons to
purchase from us

  • Professional customer service
  • Attractive prices
  • Fast delivery times!

  • Warranty: 12 months
  • Delivery time: up to 10 business days

shopping cart

Print Friendly, PDF & Email
Your cart is currently empty.

Return to shop