NEMA17 PR42HS48-1684-03F 5.5kg-cm Stepper Motor-D Type Shaft
NEMA17 PR42HS48-1684-03F 5.5kg-cm Stepper Motor-D Type Shaft
NEMA17 PR42HS48-1684-03F 5.5kg-cm Stepper Motor-D Type Shaft
The NEMA17 PR42HS48-1684-03F is a precision hybrid stepper motor with a D-type shaft configuration, delivering 5.5 kg-cm holding torque for accurate positioning in industrial automation and robotics applications. This motor is widely used by engineers, automation technicians, and hobbyists in CNC machines, 3D printers, and precision motion control systems where reliable step-by-step angular displacement is critical. It solves the challenge of achieving accurate, repeatable motion without feedback sensors while maintaining low power consumption and high reliability in demanding operational environments.
Product Overview
The NEMA17 PR42HS48-1684-03F stepper motor operates on the principle of electromagnetic coil excitation to produce discrete rotational steps. Unlike traditional DC motors, this hybrid stepper motor combines permanent magnet technology with electromagnets to achieve high holding torque and precise positional accuracy. The motor features a D-type shaft, which provides a flat surface for secure coupling with pulleys, gears, and drive mechanisms without slippage. With 48 steps per revolution and a holding torque of 5.5 kg-cm, this motor excels in applications requiring precise angular control with minimal backlash and excellent repeatability across thousands of operational cycles.
The PR42HS48-1684-03F model is engineered with high-quality materials and precision manufacturing to ensure consistent performance in industrial environments. The motor's compact NEMA17 frame size (42mm x 42mm) makes it ideal for space-constrained applications while maintaining robust torque delivery. The D-type shaft design eliminates rotational slippage common with round shafts, making it the preferred choice for critical positioning applications. This stepper motor integrates seamlessly with standard stepper drivers and microcontroller boards, making it accessible for both professional engineers and electronics enthusiasts building custom automation projects.
Key Specifications
| Specification | Details |
| Product Type | Hybrid Stepper Motor NEMA17 |
| Model Number | PR42HS48-1684-03F |
| Frame Size | 42mm x 42mm (NEMA17 Standard) |
| Shaft Type | D-Type Shaft (Flat Surface Design) |
| Holding Torque | 5.5 kg-cm (0.54 Nm) |
| Steps per Revolution | 48 Steps (7.5 degrees per step) |
| Rated Current | 1.68A per phase |
| Coil Resistance | 1.84 Ohms per phase |
| Number of Phases | 2-Phase Bipolar |
| Winding Configuration | Series/Parallel Selectable |
| Operating Temperature Range | -10°C to +50°C |
| Brand | Original Authentic |
| 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
- D-Type Shaft Design: Flat surface prevents rotational slippage, ensuring secure coupling with pulleys and gears for applications requiring absolute positional accuracy
- High Holding Torque: 5.5 kg-cm torque maintains motor position without power, critical for vertical load applications and precision positioning systems
- 48 Steps per Revolution: Fine step resolution of 7.5 degrees per step enables smooth motion and precise angular control in multi-axis automation
- Bipolar 2-Phase Configuration: Standard wiring compatible with common stepper drivers and microcontroller boards for easy integration into existing systems
- Compact NEMA17 Frame: 42mm x 42mm footprint fits space-constrained enclosures while delivering industrial-grade torque and reliability
- Low Power Consumption: Efficient electromagnetic design reduces heat generation and power supply requirements for extended operational periods
Applications and Use Cases
- 3D Printer Extruders and Bed Movement: Precise XYZ axis positioning with holding torque prevents layer misalignment and ensures dimensional accuracy in printed parts
- CNC Machine Tool Control: Drives spindle speed control and table positioning in small-format CNC mills and routers for accurate cutting operations
- Automated Labeling and Packaging: Controls label dispenser rotation and conveyor belt advancement in high-speed packaging lines with exact step synchronization
- Robotics Joint Actuation: Powers robotic arm joints and gripper mechanisms with repeatable positioning for pick-and-place automation and assembly tasks
- Telescope and Optical Equipment: Enables precise angular positioning in astronomical equipment and optical scanning systems requiring smooth, jitter-free motion
- Medical Device Automation: Drives syringe pumps, sample carousel rotation, and microscope stage positioning in laboratory and diagnostic equipment
How to Use
To implement the NEMA17 PR42HS48-1684-03F stepper motor, first identify your system voltage and power requirements, then select an appropriate stepper driver module such as A4988, DRV8825, or TMC2208 capable of handling 1.68A phase current. Connect the four motor wires to the driver following the bipolar series configuration: coil A positive and negative to one driver output, coil B positive and negative to the second output. Mount the motor using standard NEMA17 mounting brackets, ensuring the D-type shaft aligns properly with your driven mechanism, then secure the coupling or pulley using the flat surface of the shaft to prevent rotational slippage during operation.
Configure your microcontroller (Arduino, Raspberry Pi, or PLC) to send step and direction signals to the stepper driver at appropriate frequencies based on your desired speed and acceleration profiles. For vertical load applications, verify that the 5.5 kg-cm holding torque exceeds your maximum static load by a safety factor of at least 1.5. Test the motor operation at low speeds initially to confirm smooth stepping action and proper directional control before running at full operational speed. Implement microstepping in your driver firmware if available to achieve smoother motion and reduced vibration, particularly important in precision applications like 3D printing and optical equipment.
Frequently Asked Questions
What is the difference between NEMA17 stepper motors with round shafts versus D-type shafts?
D-type shafts feature a flat surface that prevents rotational slippage when coupled to pulleys or gears, making them superior for precision applications. Round shafts rely on friction and set screws, which can slip under load or vibration. The D-type design is mandatory for applications like 3D printers and CNC machines where positional accuracy is critical.
Can I use this motor with standard Arduino and stepper driver modules?
Yes, the PR42HS48-1684-03F is fully compatible with popular stepper drivers like A4988, DRV8825, and TMC2208 modules commonly used in Arduino projects. The 1.68A rated current fits within the capability of these drivers. Simply connect the four motor wires to the driver outputs and send step/direction signals from your Arduino digital pins to control motor movement.
What is the maximum load this motor can handle vertically?
The 5.5 kg-cm holding torque can support approximately 0.55 kg (550 grams) hanging vertically from a 10cm radius pulley. For safety, apply a 1.5x safety factor, limiting vertical loads to 367 grams. Larger loads require gearing down the motor output or selecting a higher torque NEMA23 motor for your application.
How do I prevent the motor from overheating during continuous operation?
The PR42HS48-1684-03F generates heat proportional to current and duration. For continuous operation, reduce current below rated 1.68A using microstepping, add a small heatsink or cooling fan if ambient temperature exceeds 35°C, and ensure adequate ventilation around the motor. Monitor temperature with an infrared thermometer, keeping it below 80°C for long motor lifespan.
Is this motor suitable for 3D printer applications?
Yes, this motor is excellent for 3D printer extruders and bed movement. The D-type shaft prevents slippage critical for layer alignment, and 5.5 kg-cm torque is sufficient for standard FDM printers. The 48-step resolution provides smooth motion, and compatibility with common stepper drivers makes integration straightforward.
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.
Why Buy from The Tech Depot
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy NEMA17 PR42HS48-1684-03F 5.5kg-cm Stepper Motor-D Type Shaft Online in India
Purchase the NEMA17 PR42HS48-1684-03F 5.5kg-cm Stepper Motor-D Type Shaft online at The Tech Depot, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad,