Stepper Motors

CDA's stepper motors provide an incremental step output depending on the excitation logic applied to the motor windings. These stepper motors provide high running torque capacity per unit weight and size. Their high performance and excellent stepping accuracy make these components ideal in open loop positioning systems, incremental rate control systems, or limited angle rotary switched. Samarium combalt rare earth magnets, high grade stainless steel construction, and class H225 insulation system assure rugged, reliable performance under the most severe operating conditions.

GEARHEAD RATINGS
GearHead
Type
'A' Basic Size Torque Capacity Torsional
Spring Constant
Continuous Intermittent
Inches mm Lb-In Nm Lb-In Nm Lb-In/Rad Nm/Rad
A 0.750 19.05 7.2 0.81 18 2.03 6.0 E+03 6.8 E+02
C 1.00 25.40 48 5.4 84 9.5 1.6 E+04 1.8 E+03
D 1.250 31.75 84 9.5 168 19 2.5 E+04 2.8 E+03
F 1.500 38.10 168 19 456 52 4.2 E+04 4.7 E+03
H 2.00 50.80 300 34 744 84 7.4 E+04 8.4 E+03
J 2.500 63.50 744 84 1500 170 1.8 E+05 2.0 E+04
M 3.00 76.20 1200 136 3000 340 6.0 E+05 6.8 E+04

STANDARD PINION DATA (In Inches)
Gearhead
Type
No. of
Teeth
Pressure
Angle
Pitch
Diameter
Testing
Radius
Outside Dia.
(Ref.)
'L' 'E' 'D'
A 22 20° 64 0.1719 0.375 0.500 0.156 0.6875
C 28 20° 48 0.2817 0.625 0.625 0.188 0.9375
D 26 20° 32 0.4063 0.875 0.750 0.250 1.1875
F 30 20° 32 0.4688 1.00 0.875 .313 1.4375
H 29 20° 24 0.6042 1.292 1.00 0.375 1.8750
J 27 20° 16 0.8750 1.813 1.250 0.437 2.3750
M 35 20° 16 1.0938 2.313 1.500 0.500 2.9687
N 34 20° 12 1.4167 3.000 1.625 0.562 3.9687