NEMA17 PR42HS60-0406 6.5kg-cm Stepper Motor-Round Type Shaft
NEMA17 PR42HS60-0406 6.5kg-cm Stepper Motor-Round Type Shaft
NEMA17 PR42HS60-0406 6.5kg-cm Stepper Motor-Round Type Shaft
The NEMA17 PR42HS60-0406 is a precision stepper motor featuring a round type shaft with 6.5kg-cm holding torque, designed for accurate positional control in automation and robotics applications. Professional engineers and hobbyists use this motor for CNC machines, 3D printers, laser engravers, and industrial automation systems where precise step-by-step motion control is essential. This motor solves the challenge of achieving repeatable, accurate angular positioning without feedback sensors, making it ideal for open-loop control systems requiring high reliability and consistent performance.
Product Overview
The NEMA17 PR42HS60-0406 operates on the principle of electromagnetic coil energization to create rotational motion through discrete steps. When sequential pulses are applied to the motor windings via a stepper driver, the rotor advances by fixed angular increments, typically 1.8 degrees per full step or 0.9 degrees per half step. The round type shaft design provides superior mechanical stability and reduced radial runout compared to flat-shaft variants, making it particularly suitable for applications requiring precision coupling to pulleys, gears, or direct drive mechanisms. The 6.5kg-cm torque rating ensures sufficient holding force for moderate load applications while maintaining compact form factor.
This NEMA17 motor features bipolar stepper winding configuration with 4-wire or 6-wire connection options, enabling flexible driver compatibility across various control platforms including Arduino, Raspberry Pi, and industrial PLC systems. The round shaft accommodates standard 5mm bore couplings and pulleys, simplifying mechanical integration into existing assemblies. With typical holding torque of 6.5kg-cm and dynamic torque characteristics optimized for 1-3A operating current range, this motor delivers consistent performance across temperature variations and extended duty cycles common in manufacturing environments.
Key Specifications
| Specification | Details |
| Product Type | NEMA17 Bipolar Stepper Motor - Round Shaft |
| Model Number | PR42HS60-0406 |
| Holding Torque | 6.5kg-cm at rated current |
| Step Angle | 1.8 degrees per full step |
| Shaft Type | Round type, 5mm diameter |
| Shaft Length | 24mm from motor face |
| Rated Current | 1.5A per phase |
| Winding Resistance | 2.8 ohms per phase |
| Inductance | 2.8mH per phase |
| Motor Length | 42mm body length |
| Mounting Pattern | NEMA17 standard 47mm bolt circle |
| Connector Type | 4-pin or 6-pin JST compatible |
| Operating Temperature | -20 to 50 degrees Celsius |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
Key Features
- 6.5kg-cm holding torque provides reliable positioning force for light to medium load applications without slippage or backlash
- Round type 5mm shaft enables direct coupling to standard mechanical components including pulleys, sprockets, and flexible couplings with minimal alignment issues
- NEMA17 standard mounting pattern ensures compatibility with universal stepper motor brackets and mounting systems across industrial equipment
- Bipolar winding configuration supports both full-step and half-step microstepping modes for smooth motion and reduced vibration in precision applications
- Compact 42mm body length with integrated mounting flange allows space-efficient integration into confined mechanical assemblies
- Low inductance design enables rapid current switching for high-speed operation up to 3000 RPM without excessive heat generation
Applications and Use Cases
- 3D printer XY-axis and Z-axis positioning where 6.5kg-cm torque precisely controls print head movement and build platform height with 0.2mm layer accuracy
- CNC engraving machines for stepper-based spindle speed control and XY table positioning in laser engravers and small milling operations
- Automated laboratory equipment including sample dispensers, carousel rotators, and automated testing rigs requiring repeatable angular positioning
- Industrial automation conveyor systems, robotic arm joint actuation, and precision manufacturing equipment for product sorting and positioning
- DIY robotics projects including pan-tilt camera mounts, robotic arms, and autonomous vehicle steering mechanisms
- Textile machinery and embroidery machines requiring synchronized multi-axis motion control for pattern generation and material advancement
How to Use
Begin by identifying your stepper driver module compatibility with the NEMA17 PR42HS60-0406 wiring configuration. For 4-wire unipolar operation, connect the two coil pairs to the driver outputs ensuring proper phase sequencing. For 6-wire bipolar configuration, use only the two main coil terminals and leave center-tap wires unconnected, or consult your specific driver manual for optimal winding connection. Mount the motor securely using the NEMA17 standard bolt pattern with M3 or M4 fasteners, ensuring the round shaft remains concentric with your driven load to minimize vibration and mechanical stress.
Configure your stepper driver for 1.5A rated current using current-limiting potentiometers or firmware settings, then program your control system (Arduino, PLC, or motion controller) to generate pulse sequences at your desired stepping rate. For smooth operation, implement microstepping at 1/4 or 1/8 step resolution rather than full-step mode to reduce noise and vibration. Monitor motor temperature during operation; if exceeding 60 degrees Celsius, reduce current or stepping frequency to prevent thermal damage. Always use a proper stepper driver module rated for your voltage supply (typically 12-24V DC) rather than direct microcontroller connection, as stepper motors require high current pulses that microcontroller pins cannot safely provide.
Frequently Asked Questions
What is the difference between NEMA17 round shaft and flat shaft stepper motors?
Round shaft motors like the PR42HS60-0406 provide superior mechanical stability with reduced radial runout and wobble compared to flat-shaft designs. Round shafts accommodate standard 5mm bore couplings and pulleys, simplifying mechanical integration. Flat-shaft motors are typically used where direct pulley mounting without coupling is required. For precision applications requiring accurate alignment and minimal vibration, round shaft is the preferred choice.
Can I directly connect this stepper motor to my Arduino microcontroller?
No, you must use a stepper driver module such as A4988, DRV8825, or ULN2003. Stepper motors require high current pulses (1.5A per phase) that Arduino pins cannot safely provide, risking permanent damage to the microcontroller. The driver module acts as a current amplifier, accepting low-power logic signals from Arduino and delivering the high-current pulses needed to energize the motor coils. Always use a dedicated stepper driver with proper power supply isolation.
What holding torque means and how does 6.5kg-cm affect my application?
Holding torque is the maximum force the motor can resist when powered but not stepping, measured in kilogram-centimeters. At 6.5kg-cm, this motor can hold a 6.5kg load at 1cm from the shaft center without slipping. For your application, calculate the load torque by multiplying load weight by distance from shaft center. If your calculated torque exceeds 6.5kg-cm, select a higher torque motor like NEMA23. For safety, design systems using only 50-70% of rated holding torque to account for mechanical losses and temperature variations.
What is the difference between full-step and half-step microstepping modes?
Full-step mode energizes one coil at a time, advancing 1.8 degrees per pulse with maximum torque but higher vibration and noise. Half-step mode alternates between single and dual coil energization, advancing 0.9 degrees per pulse with smoother motion and reduced vibration. Microstepping at 1/4 or 1/8 step resolution provides even finer position control and quieter operation by using PWM current modulation. Your driver module determines available stepping modes; modern drivers support multiple microstepping options for optimized performance.
How do I prevent stepper motor stalling or missed steps?
Stepper motors stall when stepping frequency exceeds the motor's ability to accelerate the load, causing loss of synchronization. Prevent stalling by implementing acceleration ramps that gradually increase stepping frequency from zero to maximum speed, allowing the motor to maintain torque throughout the speed range. Reduce stepping frequency if experiencing vibration or audible grinding sounds. Ensure proper current limiting through your driver to maintain rated torque without overheating. For heavy loads, use NEMA23 or larger motors with higher torque ratings rather than pushing NEMA17 beyond its mechanical limits.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
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- Returns: 7-day return policy on manufacturing defects only
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