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All Categories > Item # RK569AAE  
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Item # RK569AAE, Microstep Stepper Motor System (Single-Phase 100-115 VAC)

Web Price QUOTE

The RK series offers advanced functions with state-of-the-art technologies to achieve the ultimate performance from a stepper motor.
  • Lower vibration
  • Improved angle accuracy
  • Improved response
  • Protective Earth Terminal
  • Smooth Drive Function
  • Meets Global Safety Standards

Unit of Measure: Imperial | Metric 

Lead Time · Specifications · Features · Product Lineup

Lead Time

Available to Ship1

This Item cannot be cancelled or returned.
1 Quoted Ship Date for orders placed before 12:00pm PST in quantities listed.
A newer version of this product is available, contact your local sales office for more information.


Motor Type

5-Phase Microstep

Frame Size

2.36 in

Speed-Torque Characteristics

Speed - Torque Characteristics
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Holding Torque

230 oz-in



Shaft/Gear Type

Round Shaft (No Gearhead)



Power Supply

Single-Phase 100-115 VAC


4.5 A

Basic Step Angle

Microstep- 0.00288° ~ 0.72°

Rotor Inertia

3.1 oz-in²

RoHS Compliant


Safety Standards


CE Marking

Low Voltage Directives
EMC Directives


RKD514L-A (Driver)
PK569AE (Motor)

Insulation Resistance (Motor)

100 M Ω minimum under normal temperature and humidity, when measured by a 500 VDC megger between the windings and the motor casing.

Insulation Resistance (Driver)

100 M Ω under normal temp and humidity, when measured by a 500VDC megger between the Power input terminal-PE terminal, Motor output terminal-PE terminal, Signal I/O terminals-Power input terminal, Signal I/O terminals-Motor output terminal

Dielectric Strength (Motor)

Sufficient to withstand 1.5 kV, 50 Hz or 60 Hz applied for 1 minute between the windings and casing under normal temperature and humidity.

Dielectric Strength (Driver)

Sufficient to withstand 1 min. at normal temp and humidity: Power-PE terminals 1.5k VAC 50 or 60Hz, Motor output-PE terminals 1.5k VAC 50 or 60Hz, Signal I/O-Power terminals 1.8k VAC 50 or 60Hz, Signal I/O-Motor output terminals 1.8k VAC 50 or 60Hz

Insulation Class

[Motor] Class B [266°F (130°C)] [Recognized as Class A 221°F (105°C) by UL standard]

Ambient Temperature Range

[Motor] 14°F ~ 122°F (-10°C ~ 50°C) (nonfreezing)
[Driver] 32°F ~ 122°F (0°C ~ 50°C) (nonfreezing)

Ambient Humidity

85% or less (noncondensing)

Operating Atmosphere

No corrosive gases, dust, water or oil.

Temperature Rise

Temperature rise of the coil measured by the Change Resistance Method is 176°F (80°C) or less (at rated current, at standstill, five phases energized).

Shaft Runout

0.002 in (0.05 mm) T.I.R.


0.003 in. (0.075 mm) T.I.R.


0.003 in. (0.075 mm) T.I.R.

Stop Position Accuracy

±3 arc minutes (±0.05°)

Radial Play

0.001 inch (0.025 mm) max. of 1.12 lb. (5 N)

Axial Play

0.003 in (0.075 mm) max. of 2.2 lb. (10 N)

Permissible Overhung Load

0 in. from Shaft End = 14.1 lb
0.2 in. from Shaft End = 16.8 lb
0.39 in. from Shaft End = 21 lb
0.59 in. from Shaft End = 29 lb
0.79 in. from Shaft End = 42 lb

Permissible Thrust Load

The permissible thrust load shall be no greater than the motor mass.

RK Series Stepping Motor & Driver Packages

The RK Series incorporates new functions and state-of-the-art technologies to achieve the ultimate performance of a stepping motor. The series offers various types of motors including the standard type, IP65 rated motor type, Harmonic, Planetary and Taper Hobbed geared stepping motors. Three frame sizes of 1.65 in. (42 mm), 2.36 in. (60 mm) and 3.35 in. (85 mm) [3.54in. (90 mm)] are available. The wide-range of motor variations and affordable price make the RK Series a perfect solution for your various applications.

Smooth Drive Function

The Smooth Drive Function ensures low-vibration and low-noise operation at low speeds by internally executing microstepping within the driver, working independently of the input pulse frequency of your controller.

Smooth Drive Function

Microstep Drive System

The motor's basic step angle is divided by a maximum of 1/250 without the use of a reduction mechanism or other mechanical means. Sixteen resolution levels are available, enabling fine positioning and further reduction of vibration and noise. A motion sequence of "low-speed transfer > high-speed return" can easily be performed without the need for changing from a microstep pulse frequency to a full-step operation. The RK Series can also be used in full-step operation.

100-115 VAC, 200-230 VAC Power Source Variation

The RK Series can be used with most common power supplies available around the world. They also comply with international standards, ensuring safe operation.

Angle AccuracyImproved Angle Accuracy

Angle accuracy may decrease during use of microstep drivers, due to the effect of current control. However, the drivers used in the RK Series are designed to ensure that the motor operates at maximum accuracy.

ResponseImproved Response

The RK Series, with its high starting frequency, shortens the machine cycle without affecting acceleration/deceleration rates. This produces a significant savings in time for an operation in which the same cycle is repeated thousands of times each day.

Safe OperationCompliance with Safety Standards

The RK Series complies with the UL/CSA and EN standards. (With the RK54* type, only the driver conforms to the CSA standard.) The CE marking certifies compliance with the EMC Directive and Low-Voltage Directive. Additionally, the RK Series conforms to the EMC Directive only through its use of surge arrester. The RK Series doesn't require an external ferrite core or filter in the motor line or power line.

PE TerminalProtective Earth Terminal

[Excluding motors with a frame size of 1.65 in. (42mm)]

Extended Bearing Life

The life of a motor is affected by its bearing. The RK Series achieves approximately twice the life of a conventional motor by adopting a modified bearing. [Available only with the standard type with a frame size of 2.36 in. (60mm) or 3.35 in. (85mm).]

EncoderEncoder Option Available

The RK Series stepping motor with encoder offers high torque and precise feedback capability.

  • 500 pulse/rev.
  • 3-channel TTL type

Product Lineup

RK Series Product Lineup

Product Lineup


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· Motor Dimensions

· Driver Dimensions

· Speed - Torque Characteristics

· System Configuration


 width= Motor CAD (DXF)

 width= Driver CAD (DXF)

 width= Connection and Operation

 width= RK Motor/Driver Operating Manual

 width= Common Specifications

 width= Product Catalog

 width= 3D CAD (*.step)



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Microstep Stepper Motor System (Single-Phase 100-115 VAC)

 Product Line Update 


Microstep Stepper Motor & Driver

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