Overview
The 42SHDB4036Z-24B is a high-performance NEMA 17 bipolar stepper motor designed for precision motion control. With a body length of 40mm, it offers a significant boost in holding torque compared to standard 34mm “pancake” motors, making it ideal for the high-inertia axes of 3D printers and small CNC machines. It features a standard 4-pin JST-PH connector, ensuring compatibility with most 3D printer mainboards like BIGTREETECH, MKS, and Creality.
Key Features
High Holding Torque: Provides ~40N.cm of torque, preventing “skipped steps” during high-speed printing or heavy extrusion.
Precision Movement: 1.8° step angle (200 steps/rev) ensures high-resolution positioning for smooth surface finishes.
Low Heat Generation: Optimized coil resistance allows for long printing sessions without the motor overheating.
Industry Standard: 42mm x 42mm frame size fits almost all standard NEMA 17 brackets and 3D printer gantry plates.
D-Shape Shaft: Features a flat side (D-cut) on the shaft to prevent drive gears and pulleys from slipping.
Technical Specifications
| Feature | Specification |
| Model | 42SHDB4036Z-24B |
| Motor Type | Bipolar Stepper (NEMA 17) |
| Step Angle | 1.8° |
| Body Length | 40mm |
| Rated Current | 1.5A – 1.7A per phase |
| Holding Torque | ~40 N.cm (approx. 57 oz-in) |
| Shaft Diameter | 5mm (D-Shape) |
| Phase Resistance | 2.0 Ω ± 10% |
| Weight | ~280g |
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