General specification

Step Angle Accuracy ±5%(full step, no load)
Resistance Accuracy ±10%
Inductance Accuracy ±20%
Temperature Rise 80℃max (rated current, 2 phase on)
Ambient Temperature -20℃~+50℃
Insulation Resistance 100MΩ min,500VDC
Dielectric Strength 500VDC for one minute
Shaft Radial Play 0.02mm max(450g load)
Shaft Axial Play 0.08mm max(450g load)
Max. radial force 28N(20mm from the flange)
Max. axial force 10N
Rotation CCW
Insulation Class B(130℃)
Model length
(mm)
step angle deg resistance
(Ω)
current
(A)
voltage holding torque
(N.cm)
lead wires/pins rotor inetia
(g.cm²)
weight
(kg)
20HS26DF20 26 1.8° 20 0.2 4 1.6 4 2 0.1
20HS26DF2 26 1.8° 2 0.6 4 1.6 4 2 0.1
20HS30DF605 30 1.8° 6.5 0.6 3.9 1.8 4 2.5 0.1
20HS33DF605 33 1.8° 6.5 0.6 3.9 1.8 4 2.5 0.11
20HS42DF505 42 1.8° 5.4 0.8 4.32 3 4 3 0.12