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 RK series incorporates new functions and state-of-the-art technologies to achieve the ultimate performance of a stepper motor. The RK Series offers both the high resolution and smooth motion of a microstepping system with improved response characteristics found in a high performance stepping motor solution. The RK series "Smooth Drive" function achieves low vibration without the need for a higher cost pulse generator.
  • Lowest vibration motor performance
  • Smooth Drive function
  • Geared options
  • IP65 motors available
  • Resolution - 0.72º ~ 0.0.00288º [16 steps] (Microstep)
  • Single-phase 100-115 or 200-230 VAC or Three-phase 200-230 VAC
  • RoHS Compliant
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Unit of Measure
Items Stepper Motor
RK543AA
Microstep Stepper Motor System (Single-Phase 100-115 VAC)
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 Stepper Motor
RK543BA
Microstep Stepper Motor System (Single-Phase 100-115 VAC)
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 RK_TH.jpg
RK543AA-T3.6
Microstep Stepper Motor System (Single-Phase 100-115 VAC)
Web Price Request Quote
 RK_TH.jpg
RK543AA-T7.2
Microstep Stepper Motor System (Single-Phase 100-115 VAC)
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 RK_TH.jpg
RK543AA-T10
Microstep Stepper Motor System (Single-Phase 100-115 VAC)
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Frame Size - 1.65 in
Speed-Torque Characteristics -
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Holding Torque - 18.4 oz-in - 18.4 oz-in - 48 oz-in - 98 oz-in - 141 oz-in
Type - Standard - Standard - Geared - Geared - Geared
Shaft/Gear Type - Round Shaft (No Gearhead) - Round Shaft (No Gearhead) - Taper Hobbed Gear - Taper Hobbed Gear - Taper Hobbed Gear
Gear Ratio (X:1) - - - 3.6 :1 - 7.2 :1 - 10 :1
Backlash - - - 2 arc min (0.034º) - 10 arc min (0.17º) - 10 arc min (0.17º)
Shaft - Single - Double - Single - Single - Single
Power Supply - Single-Phase 100-115 VAC
Current - 0.75 A
Basic Step Angle - Microstep- 0.00288º ~ 0.72º - Microstep- 0.00288º ~ 0.72º - Microstep- 0.0008º ~ 0.2º - Microstep- 0.0004º ~ 0.1º - Microstep- 0.000288º ~ 0.072º
Permissible Speed Range (r/min) - - - 0 ~ 500 - 0 ~ 250 - 0 ~ 180
Rotor Inertia - 0.191 oz-in²
Lost Motion -
Encoder Output -
Safety Standards - UL CSA (driver only) EN CE
Permissible Overhung 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 - 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 - 0 in. from Shaft End = 2.2 lb0.2 in. from Shaft End = 3.1 lb0.39 in. from Shaft End = 4.5 lb0.59 in. from Shaft End = 6.7 lb - 0 in. from Shaft End = 2.2 lb0.2 in. from Shaft End = 3.1 lb0.39 in. from Shaft End = 4.5 lb0.59 in. from Shaft End = 6.7 lb - 0 in. from Shaft End = 2.2 lb0.2 in. from Shaft End = 3.1 lb0.39 in. from Shaft End = 4.5 lb0.59 in. from Shaft End = 6.7 lb
Permissible Thrust Load - - - 3.3 lb - 3.3 lb - 3.3 lb
Permissible Thrust Load - The permissible thrust load shall be no greater than the motor mass. - The permissible thrust load shall be no greater than the motor mass. - - -
Current per Phase (A/phase) -
Motor Connection Type -
Connection Type -
Lead Wires -
Lead Time (Legacy) -