Oriental Motor

ORIENTAL MOTOR U.S.A. Corp.
570 Alaska Avenue
Torrance, CA 90503
1-800-GO-VEXTA (468-3982)

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The high-torque PKP series stepper motor offers balanced performance enhanced by high torque, low vibration and low noise.
  • 1.38 in. (35 mm) Frame Size
  • 2-phase, Unipolar
  • Single or Double Shaft
  • Encoder models available
  • Max. Holding Torque = 23 ~ 42 oz-in (0.16 ~ 0.3 N·m)
Stepper Motor
Unit of Measure
Items Stepper Motor
PKP233U12A
1.38 in. (35 mm) PKP Series 2-Phase Unipolar Stepper Motor
Web Price $58.00
Stepper Motor
PKP233U12B
1.38 in. (35 mm) PKP Series 2-Phase Unipolar Stepper Motor
Web Price $61.00
Stepper Motor
PKP235U12A
1.38 in. (35 mm) PKP Series 2-Phase Unipolar Stepper Motor
Web Price $66.00
Stepper Motor
PKP235U12B
1.38 in. (35 mm) PKP Series 2-Phase Unipolar Stepper Motor
Web Price $68.00
Stepper Motor
PKP233U12M
1.38 in. (35 mm) PKP Series 2-Phase Unipolar Stepper Motor
Web Price $179.00
Basic Step Angle - 1.8º
Frame Size - 1.38 in
Motor Length - 1.46 in. - 1.46 in. - 2.05 in. - 2.05 in. - 2.79 in.
Holding Torque - 23 oz-in - 23 oz-in - 42 oz-in - 42 oz-in - 22 oz-in
Current per Phase (A/phase) - 1.2
Voltage (VDC) - 3.24 - 3.24 - 4.08 - 4.08 - 3.24
Resistance (Ω/phase) - 2.7 - 2.7 - 3.4 - 3.4 - 2.7
Inductance (mH/phase) - 1.4 - 1.4 - 2 - 2 - 1.4
Shaft/Gear Type - Round Shaft with Flat (No Gearhead)
Gear Ratio (X:1) -
Output Shaft Diameter - 5 mm
Backlash -
Shaft - Single - Double - Single - Double - Single
Encoder - Not Equipped
Encoder Output -
Output Type -
Electromagnetic Brake - Not Equipped - Not Equipped - Not Equipped - Not Equipped - Equipped
Motor Connection Type - Connector
Connection Type - Unipolar
Lead Wires - 6
Rotor Inertia - 0.13 oz-in² - 0.13 oz-in² - 0.27 oz-in² - 0.27 oz-in² - 0.197 oz-in²
Radial Load - 0 in. from Shaft End = 4.5 lb0.2 in. from Shaft End = 5.6 lb0.39 in. from Shaft End = 7.6 lb0.59 in. from Shaft End = 11.7 lb
Axial Load - 2.2 lb
Brake Type - - - - - Power Off Activated Type
Brake Power Supply - - - - - 0.07
Excitation Current -
Static Friction Torque - - - - - 42 oz-in