High-Precision SH20BY20H Linear Stepper Motor
The SH20BY20H series linear stepper motor is a compact, high-performance solution designed for precision-driven equipment. With a rugged structure and strict quality control, it delivers consistent step accuracy and stable operation across diverse environments.
Core Advantages & Specifications
Operating within -10℃ to 55℃, the motor adapts to indoor and industrial settings. It features E-class insulation and 50MΩ minimum insulation resistance (500VDC), ensuring safety and durability. Available in 2/4-phase configurations, with voltage ranging from 3V to 12V and holding torque 30-85g.cm, it meets varied power and precision needs. Lightweight at 30g, it integrates seamlessly into space-constrained devices like micro-printers and automotive meters, balancing performance and portability.
5. 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 | Weight (g) |
| SH20BY20H01 | 18 | 2 | 12 | 0.15 | 80 | 85 | 15 | 0.4 | a | 30 |
| SH20BY20H04 | 18 | 4 | 4.5 | 0.12 | 38 | 30 | 15 | 0.4 | b | 30 |
| SH20BY20H05 | 18 | 4 | 12 | 0.15 | 80 | 60 | 15 | 0.4 | b | 30 |
| SH20BY20H07 | 18 | 2 | 6 | 0.3 | 20 | 60 | 15 | 0.4 | a | 30 |
| SH20BY20H07A | 18 | 2 | 6 | 0.3 | 20 | 60 | 15 | 0.4 | a | 30 |
| SH20BY20L08 | 18 | 2 | 3 | 0.6 | 5 | 80 | 15 | 0.4 | a | 30 |

