NEMA 17 23mm Bipolar Stepper Motor Series 1.5A 1.8° with 5mm D-Shaft
NEMA 17 23mm Stepper Motor Engineering Overview
The KC-42HB-23L nema 17 23mm stepper motor uses a 42 mm NEMA 17 frame with a 23 mm motor body, providing a shorter axial profile for motion systems where installation depth is restricted. This 23mm nema 17 stepper motor is configured as a 2-phase bipolar motor with a 1.8° step angle, four leads and a 5 mm D-shaft.
Electrical operation supports 12 V and 24 V DC driver systems, while the nema 17 23mm 1.5a winding provides 1.9 kg·cm holding torque. The combination is suitable for controlled positioning rather than applications selected only by maximum torque. Engineers comparing a 42mm 23mm stepper motor with longer NEMA 17 designs should evaluate available installation space, acceleration requirements, load inertia and the current capability of the selected stepper driver.
KC-42HB-23L Technical Specifications
| Parameter | Specification |
|---|---|
| Model | KC-42HB-23L |
| Product Name | NEMA 17 stepper motor |
| Motor Type | Bipolar stepper motor |
| Motor Size | 42 mm × 42 mm × 23 mm |
| Driving Voltage | 12 V / 24 V DC |
| Rated Current Per Phase | 1.5 A |
| Step Angle | 1.8° |
| Number Of Phases | 2 phases |
| Phase Resistance | 2.2 Ω |
| Holding Torque | 1.9 kg·cm |
| Shaft Diameter | 5 mm (0.19 in) |
| D-Shaft Flat Diameter | 4.5 mm |
| Shaft Length | 20 mm (0.78 in) |
| Frame Size | 42 mm × 42 mm |
| Motor Thickness | 23 mm |
| Overall Height Including Shaft | Approx. 46 mm (1.8 in) |
| Motor Width | 42 mm (1.65 in) |
| Number Of Leads | 4 leads |
| Connector / Lead Colors | A+ black, A− green, B+ red, B− blue |
| Weight | 160 g |
| Manufacturer | Kechen Motor |
| Typical Applications | 3D printers, CNC machines, laser engraving systems, medical equipment and automation equipment |
Electrical And Mechanical Integration
As a 23mm nema 17 bipolar stepper motor, KC-42HB-23L can be integrated with bipolar current-controlled drivers. The nema 17 23mm 1.8 degree stepper motor configuration provides 200 full steps per revolution before microstepping is applied. A nema 17 23mm d shaft improves coupling engagement compared with a fully round shaft, while the 5mm d shaft nema 17 23mm interface and nema 17 23mm 20mm shaft dimensions should be checked against pulley, lead screw coupling or direct-drive hardware. Both a 23mm nema 17 12v stepper motor configuration and 23mm nema 17 24v stepper motor system can be implemented when the driver is selected and current-limited correctly.
Related NEMA 17 Stepper Motor Models
| Model | Resistance | Inductance | Step Angle | Phases | Rated Current | Holding Torque | Shaft Length | Motor Thickness |
|---|---|---|---|---|---|---|---|---|
| KC-42HYB24 | 3.6 Ω | 4.1 mH | 1.8° | 2 | 1.0 A | 1.8 kg·cm | 20 mm | 24 mm |
| KC-42HYB27 | 4.3 Ω | 5.6 mH | 1.8° | 2 | 1.0 A | 3.4 kg·cm | 20 mm | 27 mm |
| KC-42HYB33 | 3.8 Ω | 6.3 mH | 1.8° | 2 | 1.5 A | 4.4 kg·cm | 20 mm | 33 mm |
| KC-42HYB34 | 2.5 Ω | 3.2 mH | 1.8° | 2 | 1.3 A | 3.25 kg·cm | 20 mm | 34 mm |
| KC-42HYB38 | 2.0 Ω | 5.0 mH | 0.9° | 2 | 1.8 A | 3.1 kg·cm | 20 mm | 38 mm |
| KC-42HYB40 | 1.7 Ω | 3.5 mH | 1.8° | 2 | 1.0 A | 3.4 kg·cm | 20 mm | 40 mm |
| KC-42HYB48 | 5.8 Ω | 10.5 mH | 1.8° | 2 | 1.4 A | 7.6 kg·cm | 20 mm | 48 mm |
| KC-42HYB60 | 1.8 Ω | 5.2 mH | 0.9° | 2 | 2.0 A | 6.7 kg·cm | 20 mm | 60 mm |
| KC-42HYB68 | 2.7 Ω | 7.0 mH | 1.8° | 2 | 1.5 A | 8.7 kg·cm | 20 mm | 68 mm |
Model Selection Considerations
The related models provide different body lengths, winding characteristics and holding torque levels within the same 42 mm frame family. The 23 mm version is primarily suited to applications where reduced motor depth is important. Longer models can provide additional torque capacity where installation space permits. Selection should therefore consider static torque, operating-speed torque, driver current, thermal conditions and mechanical load rather than motor length alone.
NEMA 17 23mm D-Shaft Dimensions

Performance Advantages
- 23 mm motor thickness reduces required installation depth within NEMA 17 mounting layouts.
- 1.8° full-step geometry supports predictable positioning and compatibility with standard microstepping drivers.
- The 5 mm D-shaft provides a defined flat surface for couplings, pulleys and other mechanical transmission components.
- A 1.5 A per-phase winding provides a practical electrical interface for common bipolar stepper motor drivers.
- The nema 17 23mm 1.9 kg cm holding torque rating supports moderate static-load positioning in space-limited assemblies.
- Four-wire bipolar construction simplifies phase identification for CNC, 3D printing, laser and automation control systems.






