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Technical ParameterModel Current
/Phase Resistance
/Phase Inductance
/Phase Holding Tprque # of Leads Rotor Inertia Weight Length
Single
Shaft Double
Shaft A O mH kg-cm g-cm2 kg mm
YSD21110-3A
YSD21110-3B 5.5 0.9 12 112 4 5500 5 99
YSD21115-3A
YSD21115-3B 6.5 0.8 15 210 4 10900 8.4 150
YSD21120-3A
YSD21120-3B 8 0.67 12 280 4 16200 11.7 201
Specifications
Ltem Technical Parameter
Step Angle 1.8°
Step Angle Accuracy ±5%(full step,no load)
Resistance Accuracy ±10%
Inductance Accuracy ±20%
Temperature Rise 80? Max(rated current,2phase on)
Ambient Temperatuer -20?~+50?
Insulation Resistance 100M O Min 500VDC
Dielectric Strength 500V AC for one minute
Shaft Radial Play 0.02 Max(450g load)
Shaft Axial Play 0.08 Max(450g load)
Max.radial force 220N(20mm from the flange)
Max.axial force 60N
