External Lead Screw Step Motor Nema8 Hybrid Non Captive Stepper Motor Tr3.5*4 P1
Casun NEMA8 hybrid non-captive stepper motor TR3.5*4(P1) external lead screw step motor
The NEMA 8 stepper motor is a small-sized stepper motor commonly used in applications requiring precise motion control in compact spaces. It features a 20mm x 20mm flange size and low torque rating, making it ideal for applications requiring low power and high precision.
This motor provides precise linear motion, making it suitable for miniature linear actuators, precision positioning systems, and mini CNC machines. The lead screw converts rotary motion into linear motion, delivering precise and repeatable linear positioning.
- Bipolar or unipolar versions available
- Hybrid stepper construction
- Available in single or double shaft versions
- CE and RoHS approved
- Customizations on request
| Step Angle | 1.8° |
| Frame Size | 20 mm |
| Number of Phase | 2 Phase |
| Rated Current | 0.5 Amp |
| Holding Torque | 14 mN.m |
| Resistance | - ohm |
| Inductance | - mH |
| Rotor Inertia | - g-cm² |
| Motor Weight | 0.06 kg |
| Lead Screw | Tr3.5X4 |
| Connection | Bipolar |
| Step Angle | 1.8° |
| Maximum Temperature | 80°C maximum |
| Ambient Temperature | -20°C to 50°C |
| Storage Temperature | -20°C to 100°C |
| Humidity Range | 85% or less, non-condensing |
| Magnet Wire Insulation | Class B 130°C |
| Insulation Resistance | 100M Ohm at 500 VDC |
| Dielectric Strength | 500 VDC for 1 min |
| Shaft Radial Play | 0.02 Max. (450g-load) |
| Shaft Axial Play | 0.08 Max. (450g-load) |
| Max. Radial Force | 28N (20mm from the flange) |
| Max. Axial Force | 10N |
| Model | Holding Torque | Step Angle | Motor Length | Type of Shaft | Rated Current |
|---|---|---|---|---|---|
| 42SHD4950 | 0.13 N.m | 1.8° | 20 mm | D Shaft-20mm | 1.0 A |
| 42SHD4003 | 0.26 N.m | 1.8° | 34 mm | D Shaft-20mm | 0.4 A |
| 42SHD0261 | 0.45 N.m | 1.8° | 40 mm | D Shaft-20mm | 1.68 A |
| 42SHD4425 | 0.59 N.m | 1.8° | 48 mm | D Shaft-24mm | 2.0 A |
| 42SHD4813 | 0.8 N.m | 1.8° | 60 mm | D Shaft-24mm | 2.1 A |
If our standard motor options don't meet your requirements, we offer customized solutions including:
- Special shafts: Custom diameter, length, shape, and material
- Winding parameters: Custom poles, wire gauge, and winding patterns
- Installation dimensions: Modified to fit your space constraints
- Lead wires: Custom length, type, and number of wires
- Connectors: Added or modified to match your requirements
Our experienced engineering team can develop customized solutions to meet your specific needs.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.