Individual Motor Specifications

Model Number AD-U21 AD-U22 AD-U23
Environment AD AD AD
Motor U21 U22 U23
Drawing Number M2400082 M2400082 M2400082
Pricing AD-U21 AD-U22 AD-U23
NEMA Frame Size 23 23 23
Number of Magnetic Stacks 1 2 3
Step Angle 1.8 1.8 1.8
Accuracy Grade (%) 3 3 3
Detent Torque (oz-in) 6 15 21
Static Torque At Thermal Current {unipolar} (oz-in) 45 80 120
Static Torque At Thermal Current {parallel} (oz-in) 50 85 110
Static Torque At Thermal Current {series} (oz-in) 60 110 130
Thermal Current {unipolar} (A) 1.4 1.6 2.0
Thermal Current {parallel} (A) 1.8 1.8 2.3
Thermal Current {series} (A) 1.4 1.4 1.8
Single Coil Inductance (mH) 3.5 3.5 3.5
Single Coil Resistance (ohm) 1.4 1.4 1.4
Series Inductance (mH) 14 14 14
Series Resistance (ohm) 3.2 3.2 3.2
Bearing Type C/F C/F C/F
Bearing Thrust Load (lbs) 25 25 25
Bearing Radial Load (lbs) 50 50 50
Bearing End Play (10**-3 in) C/F C/F C/F
Bearing Radial Play (10**-3 in) 8 8 8
Rotor Inertia (oz-in2) 0.48 1.28 1.75
Body Diameter (in) 2.25 2.25 2.25
Body Length (in) 2.4 3.5 4.4
Weight (lbs) C/F C/F C/F
*C/F - Contact Factory

Options:

Modifications:

  • Keyways
  • Custom Shafts

Speed/Torque (oz-in) Charts

CAD Drawings

FAQ