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Stepper Motor Basic Characteristics | Technical Reference | Oriental Motor
The BJ42D15-26V10 is not your standard NEMA 17. Most standard NEMA 17s (like those in an Ender 3 printer) have a body length of 34mm to 40mm and a current rating of 0.8A to 1.2A, but significantly higher torque.
If you have purchased this motor from a non-reputable seller, use the following verification steps.
The BJ42D15-26V10 is a reliable, efficient workhorse for entry-level and mid-range desktop automation. While it lacks the raw torque of a 1.2A or 1.68A motor, its specific 0.8A rating makes it the perfect match for silent drivers like the TMC2209 without requiring massive heatsinks.
Note: Always verify the pairing using a multimeter's continuity test, as wire colors may vary by supplier. Optimal Applications and Performance
How to Adjust VREF / Stepper Motor Current on Ender 3 (Pro/V2)
The BJ42D15-26V10 is distinct for two reasons:
Verified continuity: Red-Blue = Phase A, Black-White = Phase B.
This article provides a verified, comprehensive overview of the , covering specifications, electrical characteristics, and performance metrics, ensuring you have the necessary information for installation and tuning. What is the BJ42D15-26V10 Stepper Motor? The BJ42D15-26V10 is a 2-phase, hybrid stepper motor . Size: NEMA 17 (42mm flange).
NEMA 17 is the most common type of stepper motor used in 3D printers, due to its compact size and high torque output. NEMA 23 and ...
| Parameter | Value | Verification Method | |-----------|-------|----------------------| | Model | BJ42D15 26V10 | Label inspection | | Phase | 2 | Electrical continuity | | Step Angle | 1.8° ± 5% | Oscilloscope / encoder | | Number of Leads | 4 | Visual | | Rated Voltage | 26 V DC | Power supply test | | Rated Current per Phase | 1.0 A | Current probe | | Winding Resistance | 26 Ω ± 10% @ 20°C | 4-wire ohmmeter | | Winding Inductance | 28 mH ± 20% @ 1 kHz | LCR meter | | Holding Torque | 0.42 N·m (59.5 oz·in) | Torque sensor (at 1.0 A) | | Detent Torque | 0.022 N·m (3.1 oz·in) | Torque wrench method | | Rotor Inertia | 54 g·cm² (0.54 × 10⁻⁵ kg·m²) | Calculated from acceleration | | Mass | 0.35 kg (12.3 oz) | Precision scale | | Body Length | 39.5 mm (excluding shaft) | Digital caliper | | Shaft Diameter | 5 mm | Micrometer | | Shaft Length | 24 mm | Caliper | | Max Radial Load | 28 N (5 mm from face) | Static load test | | Max Axial Load | 10 N (push/pull) | Force gauge | | Insulation Class | Class B (130°C) | Thermal camera | | Dielectric Strength | 500 VAC for 1 minute | Hipot tester | | Insulation Resistance | >100 MΩ @ 500 VDC | Megohmmeter |
The is a NEMA 17 hybrid stepper motor manufactured by Hunan Keli Motor Co., Ltd. . It is commonly used as an OEM part for Creality 3D printers, typically powering the Y-axis. Verified Technical Specifications