SH55BY48B High-Power Linear Stepper Motor
The SH55BY48B series linear stepper motor is engineered for high torque and reliability, tailored to heavy-duty industrial and precision equipment needs. With a 55mm form factor and 280g weight, it delivers robust performance while supporting flexible integration with optional shaft diameters (Φ6.35/Φ4).
Core Performance & Advantages
Operating within -10℃ to 55℃, the motor adapts to temperature fluctuations in hospitals, factories and offices. It features E-class insulation and 100MΩ minimum insulation resistance, ensuring safety for medical equipment and industrial use. Equipped with 7.5° step angle and 2/4-phase configurations, its 1200-1800g.cm holding torque enables powerful positioning for industrial automation and automatic vending machines, while meeting the precision demands of office equipment and sewing machines.
Model Parameter Table
| Model | Step Angle (Deg) | Phases | Voltage (V) | Current (A) | Resistance (Ω) | Holding Torque (g.cm) | Detent Torque (g.cm) | Rotor Inertia (g.cm²) | Wiring Diagram | Figure | Weight (g) | Shaft Diameter Option |
| SH55BY48B01 | 7.5 | 4 | 12 | 1.2 | 10 | 1600 | 300 | 26 | a | 1 | 280 | Φ6.35/Φ4 |
| SH55BY48B02 | 7.5 | 4 | 12 | 0.38 | 32 | 1200 | 300 | 26 | a | 1 | 280 | Φ6.35/Φ4 |
| SH55BY48B03 | 7.5 | 2 | 6.75 | 1.0 | 6.75 | 1800 | 220 | 26 | b | 1 | 280 | Φ6.35/Φ4 |
| SH55BY48B06 | 7.5 | 2 | 24 | 0.4 | 60 | 1200 | 220 | 26 | b | 1 | 280 | Φ6.35/Φ4 |
| SH55BY48B09 | 7.5 | 2 | 3.8 | 1.23 | 3.1 | 1800 | 300 | 26 | c | 1 | 280 | Φ6.35/Φ4 |

