[ I_max = V_ref \times 2 ] (if sense resistors = 0.1 Ω). For 1.5 A, set ( V_ref \approx 0.75 , V ).
| Parameter | Value | |-----------|-------| | | 4240-15A | | Type | Bipolar, 2-phase hybrid stepper | | Step Angle | 1.8° (200 steps/rev) | | Rated Voltage | 4.0 V DC | | Rated Current | 1.5 A/phase | | Resistance per phase | 2.7 Ω ±10% | | Inductance per phase | 3.2 mH ±20% | | Holding Torque | 0.44 N·m (approx. 62 oz·in) | | Rotor Inertia | 54 g·cm² | | Weight | ~350 g | | Body length | 40 mm | | Mounting pattern | NEMA 17 (31mm hole spacing, M3 threads) |
Most buyers ask: Why not just buy a standard NEMA 17? bachin stepper motor 4240-15a
Note: Always start at 70-80% of rated current (1.1A) to prevent overheating during initial testing.
: | Color | Function | |-------|----------| | Black | Coil A+ | | Green | Coil A- | | Red | Coil B+ | | Blue | Coil B- | [ I_max = V_ref \times 2 ] (if sense resistors = 0
Designed with Japanese-made bearings and high-quality shafts, it offers high precision with low vibration and minimal heat generation. Speed Range: Capable of operating between depending on the load and driver settings. Common Applications 42CM04C Stepper Motor - Leadshine
⚠️ Actual values may vary slightly. Always verify with a multimeter before connecting to a driver. 62 oz·in) | | Rotor Inertia | 54
The Bachin 4240-15A is a hybrid stepper motor. Stepper motors are distinct from standard DC motors in that they move in discrete steps, allowing for precise control of angular position. This makes them indispensable in open-loop positioning systems where you need to tell a machine to move "exactly 100mm to the left" without the need for expensive feedback sensors.