| 技术规格 / Technical specification | ||||||
| 项目 / Item | Mode | OT-28HS28-001 | OT-28HS32-001 | OT-28HS45-001 | OT-28HS52-001 | |
| 1 | 步距角 / Step angle | ° | 1.8 | 1.8 | 1.8 | 1.8 |
| 2 | 长度 / Length | mm | 28 | 32 | 45 | 52 |
| 3 | 额定电流 / Rated current | A | 0.5 | 0.7 | 1 | 1.5 |
| 4 | 电阻 / Resistance | Ω | 13 | 6.2 | 4 | 1.7 |
| 5 | 保持扭矩 / Holding torque | gf.cm | 600 | 800 | 1250 | 1650 |
| 6 | 电感 / Inductance | mH | 10 | 5.5 | 4.5 | 1.5 |
| 7 | 驱动方式 / Drive sequence | 单/双极性 | 双极驱动 | 双极驱动 | 双极驱动 | 双极驱动 |
| 8 | 转动惯量 / Rotor inertia | g.cm2 | 6 | 9 | 12 | 18 |
| 9 | 重量 / Weight | g | 100 | 110 | 140 | 210 |
