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Harmonic Drive LLC | 247 Lynnfield St. Peabody, MA 01960 | 800-921-3332
Harmonic Drive and Harmonic Planetary are registered trademarks of Harmonic Drive LLC.


RKF

The RKF series is a compact servo actuator. It combines a zero backlash Harmonic Drive® gear and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drives as well as Harmonic Drive LLC’s REL Series, and RTL Series.

Key Features:

  • Zero backlash
  • Compact and lightweight
  • High power
  • Incremental encoder
  • High positioning and high rotational accuracy

Catalog

DXF CAD Files

PDF Drawings

3D CAD Files

Don't see what you need or not sure where to start?

Our team can help you find the right actuator for your application!


Ordering Code

RKF - 20 A - 50 - E 200 - SP
1 2 3 4 5 6 7

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1. Model

rkf series (shaft output)

2. Size

20, 25, 32

3. Version Symbol

a

4. Reduction ratio

50,100

5. Encoder type

亚搏下载e - incremental encoder

6. Encoder resolution

200 - 2000p/rev

7. Special specification

Blank - Standard product
SP____ - Special specification code



Specifications

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Item / Model RKF-20A RKF-25A RKF-32A
Gear Ratio 50 100 50 100 50 100
Rated Output W 120 111 180 190 310 310
Rated Torque Nm 19 35 29 59 49 98
In lb 168 310 257 522 434 867
Rated Rotational Speed rpm 60 30 60 30 60 30
Max.Momentary Torque Nm 56 82 98 157 220 330
In lb 496 726 867 1389 1947 2921
Moment of Inertia ( GD2/4) kg.m2 0.1 0.39 0.19 0.77 0.67 2.7
(J) kgfcm2 1.0 4.0 2.0 7.9 6.9 27
One-way Positioning accuracy arc.sec 90 90 90
Encoder resolution of output shaft with
quadrature *1
counts/
revolution
400,000 800,000 400,000 800,000 400,000 800,000
Mass kg 2.9 5.0 9.5
Servo Drive Combinations *2 AC200 RTL-230-18, REL-230-18
HA-520-1R-200 HA-520-3-200 HA-655-4B-200
HA-655-2B-200 HA-655-2B-200

*1: Quad encoder resolution is calculated by (Motor shaft resolution) x4x (Reduction ratio)
亚搏下载*2: HA-520 does only position control. HA-655 does speed control and position control.


Product Drawing

亚搏下载rkf-20a, 25a, 32a

RKF-20A, 25A, 32A Product Drawing

Dimensions

unit: mm

model

a

b

c

d±1

øe h7

f

g

Mass
(kg)

rkf-20a

180

20

64

96

100

60

108

2.9

rkf-25a

215.5

22

69.5

124

120

60

130

5.0

rkf-32a

241

25.5

87.5

128

155

80

165

9.5

亚搏下载please confirm dimensions and specifications with the drawing issued by harmonic drive llc.

contact

Contact Us

Email us a Question

or
Call: 978-532-1800

Hours 8:00am - 5:00pm EST
Monday through Friday

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