Individual Motor Specifications

Model Number VS-U31 VS-U32 VS-U33
Drawing Number list list list
Environment VS VS VS
Motor U31 U32 U33
Pricing VS-U31 VS-U32 VS-U33
NEMA Frame Size 34 34 34
Number of Magnetic Stacks 1 2 3
Step Angle 1.8 1.8 1.8
Accuracy Grade (%) 3 3 3
Detent Torque (oz-in) 12 26 31
Static Torque At Thermal Current {unipolar} (oz-in) 100 230 370
Static Torque At Thermal Current {parallel} (oz-in) 120 265 400
Static Torque At Thermal Current {series} (oz-in) 155 320 450
Thermal Current {unipolar} (A) 2.3 3.6 5.0
Thermal Current {parallel} (A) 3.4 4.5 6.3
Thermal Current {series} (A) 1.9 2.7 3.4
Single Coil Inductance (mH) 3.5 3.5 3.5
Single Coil Resistance (ohm) 0.6 0.6 0.6
Series Inductance (mH) 14 14 14
Series Resistance (ohm) 1.5 1.3 1.1
Bearing Type C/F C/F C/F
Bearing Thrust Load (lbs) 25 25 25
Bearing Radial Load (lbs) 100 100 100
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) 3.5 6.7 10.3
Body Diameter (in) 3.4 3.4 3.4
Body Length (in) 2.5 3.7 5.2
Weight (lbs) 3.8 5.2 8.3
Vacuum Rated Stepper Motor
VS Size 34 Standard Grade Vacuum Rated Stepper Motor

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Speed/Torque (oz-in) Charts

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