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)
28HS20DF10 20 1.8° 10 0.5 5 3.4 4 7 0.1
28HS24DF12 24 1.8° 12 0.5 6 3 4 8 0.1
28HS31DF54 31 1.8° 48 0.3 14.4 7 4 10 0.11
28HS33DF01 33 1.8° 5.8 0.67 3.9 6 4 10 0.12
28HS33DS36 33 1.8° 36 0.3 10.8 5 6 10 0.12
28HS33DF50 33 1.8° 50 0.24 12 5.5 4 10 0.12
28HS40DS304 40 1.8° 3.4 0.95 3.23 7.5 4 12 0.14
28HS50DF305 50 1.8° 3.5 1 3.5 13 4 18 0.2
28HS50DF10 50 1.8° 10 0.5 5 9 4 18 0.2
28HS50DS204 50 1.8° 2.4 0.95 2.28 8 6 18 0.2