42HS40-1704 NEMA17 7.2 kg-cm Stepper Motor – Round Type Shaft


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 1452874
  1. Step Angle ( ° ): 1.8
  2. Motor Length (L)mm: 40
  3. Current/Phase A: 1.7
  4. No of Leads: No. 4
  5. Shaft type: Round


 889.00 (Incl. GST)

Out of stock

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Brand: Generic
Category: Nema 17 Stepper Motors, 3D Printer Stepper Motors


This Product is also available at New SKU:1736853


The stepper motors move in precisely repeatable steps, hence they are the motors of choice for machines requiring precise position control. The Nema17 0.72N-m Stepper motor can provide 0.72N-m of torque at 1.7A current per phase.

The motor’s position can be commanded to move or hold in one position with the help of Stepper Motor Drivers. The Nema17 0.72N-m Stepper motor provides excellent response to starting, stopping, and reversing pulses from the stepper motor driver.

They are very useful in various applications, especially that demand low speed with high precision. Many machines such as 3D Printers, CNC routers and Mills, Camera Platforms, XYZ Plotters, etc.

It is a brushless DC motor, so the life of this motor is dependent upon the life of the bearings. The position control is achieved by a simple Open Loop control mechanism so it doesn’t require complex electronic control circuitry.

The motor’s shaft has been machined for good grip with a pulley, drive gear, etc., and especially avoiding stall or slip.

We are engaged in supplying and wholesaling a quality approved collection of Stepper Motors which are highly acknowledged and accepted for long service life and high reliability. To explore more of them click below, 

Stepper Motors

Note :

  1. The Nema17 0.72N-m Stepper motor dimensions and weight may have a ±2% error.
  2. Resonances can occur because of improper mounting.
  3. Not easy to operate at extremely high speeds.

Features :

  1. The input pulse decides the rotation angle of the motor.
  2. High accuracy of around 3 to 5% a step.
  3. It provides good starting, stopping, and reversing.
  4. Control of this motor is less costly because of the exclusion of complex control circuitry.
  5. The speed is proportional to the frequency of the input pulses.

Package Includes :

1 x 42HS40-1704 NEMA17 7.2 kg-cm Stepper Motor – Round Type Shaft


Stepper Motor Basics

How to control the Unipolar Stepper motor


Item Type:

NEMA 17 Stepper Motor

Shaft Type


Step Angle (Degree)


Model No.


Operating Current (A):


No. of Leads


Inductance (mH/Phase)


Resistance (Ω)


Rotor Inertia (gm-cm2)


Holding Torque (kg-cm)


Detent Torque (kg-cm)


Motor Body Length (mm):


Load Torque(N-CM)


Shaft Diameter (mm):


Shaft Length (mm):


Shipping Weight 0.484 kg
Shipping Dimensions 7 × 4 × 5 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Questions and answers of the customers

    What is the operating voltage?
  1. 0 votes
    Q What is the operating voltage? answer now
    Asked by dancingrightnow on March 19, 2023 10:20 am
    A 4.2-5V is the rated voltage for this stepper motor... Read more
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Country Of Origin: China