Nema 17 42mm 1.8 Degree Hybrid Stepper Motor 4 Leads 6 Wires
Hybrid stepper motor is a combination of variable reluctance and permanent magnet motor. The stator is electromagnetically stimulated like variable reluctance stepper motor, and the rotor of the stepper motor is axially magnetized like permanent magnet stepper motor. This stepper motor is an actuator that converts electrical pulses into angular displacement.
Genaral Specification:
Item | Specifications |
Step Angle | 1.8° |
Step Angle Accuracy | ±5%(full step,no load) |
Resistance Accuracy | ±10% |
Inductance Accuracy | ±20% |
Temperature Rise | 80℃max |
Ambient Temperature | -20℃~+50℃ |
Insulation Resistance | 100 MΩ Min. ,500VDC |
Dielectric Strength | 500VAC for 1minute |
Shaft Radial Play | 0.02Max. (450g-load) |
Shaft Axial Play | 0.08Max. (450g-load) |
Max. radial force | 28N (20mm from the flange) |
Max. axial force | 10N |
Electrical Specification:
| Step Angle | Motor Length | Current/Phase | Resistance/Phase | Inductance/Phase | Holding Torque | Number of leads | Detent Torque | Rotor Inertia |
(°) | (mm) | (A) | (Ω) | (mH) | (kg.cm) | (No.) | (g.cm) | g.cm2 |
42BYGH25-0404 | 1.8 | 25 | 0.4 | 24 | 36 | 1.8 | 4 | 75 | 20 |
42BYGH28-0504 | 1.8 | 28 | 0.5 | 20 | 21 | 1.5 | 4 | 85 | 24 |
42BYGH34-1334 | 1.8 | 34 | 1.33 | 2.1 | 2.5 | 2.2 | 4 | 120 | 34 |
42BYGH34-0406 | 1.8 | 34 | 0.4 | 24 | 15 | 1.6 | 6 | 120 | 34 |
42BYGH34-0956 | 1.8 | 34 | 0.95 | 4.2 | 2.5 | 1.6 | 6 | 120 | 34 |
42BYGH40-0406 | 1.8 | 40 | 0.4 | 30 | 30 | 2.6 | 6 | 150 | 54 |
42BYGH40-1684 | 1.8 | 40 | 1.68 | 1.65 | 3.2 | 3.6 | 4 | 150 | 54 |
42BYGH40-1206 | 1.8 | 40 | 1.2 | 3 | 2.7 | 2.9 | 6 | 150 | 54 |
42BYGH48-0406 | 1.8 | 48 | 0.4 | 30 | 25 | 3.1 | 6 | 260 | 68 |
42BYGH48-1684 | 1.8 | 48 | 1.68 | 1.65 | 2.8 | 4.4 | 4 | 260 | 68 |
42BYGH48-1206 | 1.8 | 48 | 1.2 | 3.3 | 2.8 | 3.17 | 6 | 260 | 68 |
42BYGH60-0406 | 1.8 | 60 | 0.4 | 30 | 39 | 6.5 | 6 | 280 | 102 |
42BYGH60-1704 | 1.8 | 60 | 1.7 | 3 | 6.2 | 7.3 | 4 | 280 | 102 |
42BYGH60-1206 | 1.8 | 60 | 1.2 | 6 | 7 | 5.6 | 6 | 280 | 102 |
Above only for representative products, products of special request can be made according to the customer request. |
Mechanical Dimension:MM

Stepper Motor Applications
- As the stepper motor are digitally controlled using an input pulse, they are suitable for use with computer controlled systems.
- They are used in numeric control of machine tools.
- Used in tape drives, floppy disc drives, printers and electric watches.
- The stepper motor also use in X-Y plotter and robotics.
- It has wide application in textile industries and integrated circuit fabrications.
- The other applications of the Stepper Motor are in spacecrafts launched for scientific explorations of the planets etc.
- These motors also find a variety of commercial, medical and military applications and also used in the production of science fiction movies.
- Stepper motors of microwatts are used in the wrist watches.
- In the machine tool, the stepper motors with ratings of several tens of kilowatts is used.