Used in pick-and-place machines and automated lab equipment.
![Conceptual diagram of NEMA 17 dimensions: 42mm width, 31mm bolt circle, 5mm D-shaft]
What is the specific you are building?
Note: Wire colors may occasionally vary by factory batch. Always use a multimeter to measure continuity between pairs to identify coils (10 Ω between pairs, open circuit otherwise). 5. Typical Applications bj42d15 26v10 stepper motor datasheet
VREF=1.0×8×0.1×0.7≈0.56 Voltscap V sub cap R cap E cap F end-sub equals 1.0 cross 8 cross 0.1 cross 0.7 is approximately equal to 0.56 Volts
Based on its design as a "42-34" series motor, the following technical profile applies: Step Angle : 1.8° (200 steps per revolution). Rated Current : 0.84A per phase. Phase Resistance Holding Torque : 0.4 N.m (approx. 2.86 kg.cm). Nominal Voltage
If you want, I can:
The is a high-performance, compact stepper motor frequently used in precision automation, 3D printing (notably in Creality Ender series printers), and small CNC machinery . Manufactured by Keli Motor Group, this 2-phase NEMA 17 stepper motor is recognized for its reliability, smooth operation, and optimized torque-to-size ratio.
Understanding its precise technical parameters is critical for calculating stepper driver VREF voltages, preventing skipped steps, and avoiding motor overheating. Technical Specification Overview
42mm faceplate size, placing it in the NEMA 17 family. These motors are designed for high-torque applications where precise position control is necessary without a feedback sensor. 2-Phase Hybrid Stepper Motor Frame Size: NEMA 17 (42mm) Used in pick-and-place machines and automated lab equipment
1.8 degrees per full step (200 steps per revolution) Step Angle Accuracy: ±plus or minus 5% (full step, no load) Holding Torque: ≥is greater than or equal to 320 mN·m (millinewton-meters) / approx 45 oz-in Detent Torque: 15 mN·m Max Rotor Inertia: ~38 g·cm² Total Mass: ~220 to 240 grams
M3 threaded holes spaced 31mm apart from center to center.
The is a widely utilized NEMA 17 hybrid stepper motor produced by Keli Motor Group . It serves as a standard stock motion component across several Creality 3D printers , including the Ender and CR series. Formally cataloged under the 42-34 frame configuration (42mm width by 34mm depth), this 2-phase bipolar motor balances localized precision, holding torque, and an ultra-compact footprint. Always use a multimeter to measure continuity between
The is a "current-limited" motor. If you connect it directly to a 12V battery (without a chopper driver), Ohm's Law dictates: I = V / R = 12V / 2.6Ω = 4.6 Amps . The motor will reach 130°C in under 60 seconds and be destroyed.
The BJ42D15 26V10 stepper motor datasheet provides the following key specifications: