Step Accuracy ------------------------------ ±5%
Resistance Accuracy ----------------------- ±10%
Inductance Accuracy ---------------------- ±20%
Temperature Rise -------------------------- 80°C MAX.
Ambient Temperature Range ------------- -20°C~ +50°C
Storage Temperature Range ------------- -30°C~ +60°C
Insulation Resistance ---------------------- 100M Ω MIN. 500V DC
Dielectric Strength ------------------------- 500V AC 1min
Radial Play --------------------------------- 0.02mm MAX. (450g Load)
End Play ------------------------------------ 0.08mm MAX. (450g Load)
Max. Radial force --------------------------- 75N
Max. Axial force ---------------------------- 15N
Model No | Step Angle | Step Angle | Current /Phase | Resistance /Phase | Inductance /Phase | Holding Torque | Lead wires | Rotor Inertia | Motor Weight |
( °) | (L)mm | A | Ω | mH | Kg.cm | No. | g.cm2 | Kg | |
SM57STH51-2804BFED-2M | 1.8 | 71 | 2.8 | 0.83 | 2.2 | 10 | 4 | 230 | 0.80 |
SM57STH76-2804BFED-0.35M | 1.8 | 76 | 2.80 | 1.00 | 2.5 | 20 | 4 | 280 | 0.90 |
SM57STH76-4204BEFD-0.35M | 1.8 | 96 | 4.20 | 0.60 | 1.8 | 20 | 4 | 440 | 1.20 |
SM57STH82-4204BFED-0.35M | 1.8 | 102 | 4.20 | 1.1 | 2.5 | 22 | 4 | 600 | 1.30 |
SM57STH112-4204BFED-0.35M | 1.8 | 132 | 4.20 | 0.90 | 3.8 | 30 | 4 | 800 | 1.60 |