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The NEMA 23 (57mm) hybrid ball screw stepper motor integrates a high-torque 2-phase 1.8° stepper motor with a precision ball screw assembly, delivering efficient linear motion in a 57mm frame. The ball screw mechanism, featuring recirculating steel balls, achieves up to 90% efficiency with near-zero backlash, ensuring high positioning accuracy and repeatability even under heavy loads. With thrust capacity up to 1,500N, this linear actuator is engineered for demanding industrial applications requiring high force, long life, and reliable precision.
Key Distinction: This is a ball screw linear actuator — offering higher efficiency, longer life, and better positioning accuracy than lead screw (ACME/T-type) alternatives, at a higher cost point.
| 电机规格 Motor size | 相电压(V) Voltage/Phase | 相电流(A) Current/Phase | 相电阻(Ω) Resistance/Phase | 相电感(mH) Inductance/Phase | 电机线数 Number of lead wires | 转子惯量(g·cm²) Rotor inertia | 电机重量(g) Motor weight | 电机长度L(mm) Motor length |
| 57 | 2.3 | 3 | 0.75 | 2.5 | 4 | 150 | 580 | 45 |
| 57 | 3 | 3 | 1 | 4.5 | 4 | 300 | 710 | 55 |
| 57 | 3.1 | 4 | 0.78 | 3.3 | 4 | 400 | 880 | 65 |
| 57 | 3.8 | 4 | 0.95 | 4.5 | 4 | 480 | 950 | 75 |
