General Specification
- Step Angle Accuracy: ±5%（full step， no load）
- Resistance Accuracy: ±10%
- Inductance Accuracy: ±20%
- Temperature Rise: 80℃ max （rated current, 2 phase on）
- Ambient Temperature: -20℃~+50℃
- Insulation Resistance: 100MΩ min，500VDC
- Dielectric Strength: 500VDC for one minute
- Shaft Radial Play: 0.02mm max（450g load）
- Shaft Axial Play: 0.08mm max（450g load）
- Max. radial force: 28N(20mm from the flange)
- Max. axial force: 10N
- Rotation: CCW
- Insulation Class: B(130℃)
Defination of Part number
42 | HS | 28 | D | F | 205 | X |
Frame size | Square hybrid stepper motor* | Length | Step angle** | Lead wire*** | Winding Type | External code |
*: This code shows the sharp of the motor. HS = Square hybrid stepper motor; HY = Round hybrid stepper motor.
**: This code shows the stepper angle of the motor. M = 0.9°; D =1.8°.
***: This code shows the lead wire number of the motor, the detail code defination is: F = 4; V = 5; S = 6; E = 8.
Specifications
| Model | Length (mm) | Step angle deg | Resistance (Ω) | Current (A) | Voltage | Holding torque (N.cm) | Lead wires/pins | Rotor inetia (g.cm²) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 42HS28DF205 | 28 | 1.8° | 2.5 | 1.2 | 3 | 24 | 4 | 23 | 0.18 |
| 42HS30DF106 | 30 | 1.8° | 1.6 | 1.5 | 2.4 | 25 | 4 | 26 | 0.2 |
| 42HS30DS301 | 30 | 1.8° | 3.15 | 1.0 | 3.15 | 16 | 6 | 26 | 0.2 |
| 42HS34DF103 | 34 | 1.8° | 1.3 | 1.7 | 2.21 | 40 | 4 | 38 | 0.25 |
| 42HS34DF30 | 34 | 1.8° | 30 | 0.4 | 12 | 25 | 4 | 38 | 0.25 |
| 42HS34DS60 | 34 | 1.8° | 60 | 0.2 | 12 | 13 | 6 | 38 | 0.25 |
| 42HS40DF09 | 40 | 1.8° | 0.9 | 2.1 | 1.89 | 36 | 4 | 58 | 0.3 |
| 42HS40DS40 | 40 | 1.8° | 40 | 0.6 | 24 | 46 | 6 | 58 | 0.3 |
| 42HS40DF240 | 40 | 1.8° | 240 | 0.1 | 24 | 16 | 4 | 58 | 0.3 |
| 42HS44DF80 | 44 | 1.8° | 80 | 0.25 | 20 | 40 | 4 | 75 | 0.34 |
| 42HS45DF072 | 45 | 1.8° | 0.72 | 2.3 | 1.656 | 34 | 4 | 79 | 0.34 |
| 42HS45DF12 | 45 | 1.8° | 12 | 0.5 | 6 | 30 | 4 | 79 | 0.34 |
| 42HS45DS605 | 45 | 1.8° | 6.5 | 0.5 | 3.25 | 25 | 6 | 79 | 0.34 |
| 42HS46DF303 | 46 | 1.8° | 3.3 | 1.7 | 5.61 | 50 | 4 | 82 | 0.36 |
| 42HS48DF102 | 48 | 1.8° | 1.2 | 1.7 | 2.04 | 22 | 4 | 85 | 0.38 |
| 42HS48DF80 | 48 | 1.8° | 80 | 0.25 | 20 | 50 | 4 | 85 | 0.38 |
| 42HS48DS110 | 48 | 1.8° | 110 | 0.1 | 11 | 17 | 6 | 85 | 0.38 |
| 42HS50DF203 | 50 | 1.8° | 2.3 | 1.2 | 2.76 | 40 | 4 | 88 | 0.4 |
| 42HS50DS6 | 50 | 1.8° | 6 | 1 | 6 | 48 | 6 | 88 | 0.4 |
| 42HS50DS301 | 50 | 1.8° | 3.1 | 1.2 | 3.72 | 34 | 6 | 88 | 0.4 |
| 42HS58DF202 | 58 | 1.8° | 2.2 | 1.7 | 3.74 | 67 | 4 | 112 | 0.48 |
| 42HS60DE804 | 60 | 1.8° | 8.4 | 1 | 8.4 | 70 | 8 | 115 | 0.5 |
| 42HS61DF12 | 61 | 1.8° | 12 | 0.85 | 10.2 | 83 | 4 | 115 | 0.5 |
| 42HS61DF502 | 61 | 1.8° | 4.6 | 1.3 | 5.98 | 83 | 4 | 115 | 0.5 |
In-Depth Applications for the NEMA 17 Hybrid Stepper Motor
The 42HSD Series NEMA 17 frame size is the most widely adopted motor for precision positioning tasks, balancing torque, speed, and cost. Key application areas include:
- 3D Printing & Desktop CNC: Ideal for all axes (X, Y, Z, and Extruder) in FDM 3D printers and entry-level desktop CNC routers where precise, open-loop control is essential.
- Medical & Laboratory: Used for optical alignment, sample handling robots, and automated dispensing systems in analytical testing equipment.
- General Automation & Security: Provides reliable movement for small telecommunication antennas, automated security barriers, and small industrial actuators.
Outline
Customization
 |  |  |  | |  |
| Shaft | Encoder | Brake | Connector | Pulley | Gearbox |
| Item | Description |
|---|---|
| Shaft Extensions | Motors can be configured with single or double-ended shafts, manufactured to your specific length. |
| Encoder Options | We offer integration with various encoders to meet specific resolution and application needs. |
| Brake Options | Motors can be equipped with an optional brake, available with or without a manual hand release. |
| Cable Harnesses | Custom cable harnesses, with or without connectors, are available upon request. |
| Pulleys & Pinion Gears | Pulleys or pinion gears can be supplied and mounted to your specifications. |
| Gearbox Integration | Most motors can be paired with various gearbox types, including planetary, worm wheel, and parallel shaft gearboxes. |
Frequently Asked Questions (FAQ)
Q: What is the primary benefit of choosing this NEMA 17 hybrid stepper motor?
A: The main benefit is the motor’s ubiquity and balanced performance. This NEMA 17 hybrid stepper motor provides a well-known mechanical footprint and high reliability for precise, repeatable positioning without the complexity or cost of a full servo system.
Q: Does the 42HSD Series support 0.9° step angle?
A: This 42HSD Series provides the standard 1.8° step angle. For a 0.9° step angle option, please refer to our 42HSM series, which provides twice the resolution for smoother micro-stepping performance.
Q: Does this 42mm hybrid stepper motor require a special driver?
A: Yes. As a hybrid stepper motor, it requires a constant current stepper motor driver. This driver manages the current phases to ensure smooth, precise stepping. AKT Motor can provide compatible drivers tailored to the motor’s current rating.
Q: What does the ‘Hybrid’ designation mean for this motor’s performance?
A: The term “Hybrid” indicates that this stepper motor offers higher torque and better performance stability than simpler permanent magnet stepper motor types.