8HY33-0204A Bipolar Stepper Motor

 8HY Miniature Stepper Motor -20mm(1.8 degree)

General specs:
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 --------------------------- 20N
Max. axial force ---------------------------- 2N