KDU
The KDU Series are Direct Drive Motors which achieve 10 arc-sec positioning accuracy as well as ±0.5 arc-sec repeatability with a resolution of 0.16 arc-sec. The KDU has a large Hollow Shaft design which allows cables, shafts or lasers to pass through the axis of rotation.
Key Features:
- Exceptional positional accuracy
- Exceptional repeatability
- Ultra high resolution
DXF CAD Files 
PDF Drawings 
3D CAD Files
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Model Ordering Code
| KDU - 13 - S | D 3- | 100 | SP |
| 1 | 2 | 3 | 4 |
| 1. | Model: |
Direct Drive Motor, KDU Series |
| 2. | System: |
Combination with AC servo driver, HA-770-2 |
| 3. | Power Voltage: |
100: AC100V 200: AC200V |
| 4. | Specification Symbol: |
No mark : Standard item |
Single Motor:
| KDU - | 13S | B- | E | 10 | -SP |
| 1 | 2 | 3 | 4 | 5 | 6 |
| 1. | Model: |
Direct Drive Motor, KDU Series |
| 2. | Model Number: |
13S, 13W |
| 3. | Version Symbol: |
B |
| 4. | Encoder Type: |
E: Incremental Encoder |
| 5. | Encoder Resolution: | 10: 11,840,000 p/rev |
| 6. | Special Specification: | No mark : Standard item SP : Customized specification |
List of Ratings
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Item/Model |
KDU-13SB |
KDU-13WB |
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Maximum torque *2 |
Nm |
7.0Nm (62.0 In.lb) |
15.0Nm(132.8 In.lb) |
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Maximum rotational speed |
rpm |
180 |
160 |
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Torque constant |
Nm/A |
3.1Nm/A (26.9 In.lb/A) |
6.5Nm/A (56.4 In.lb/A) |
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Input power supply voltage |
V |
AC100 |
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Moment of inertia |
kg•m1 |
0.0047 |
0.0065 |
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Moment stiffness |
Nm/rad |
2.4X105 |
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Motor position sensor |
pulse/rev |
Incremental encoder |
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Repeatability positioning precision *3 |
arc sec |
±0.5 |
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Absolute positioning accuracy *3 |
arc sec |
10 (Angular position corrected) *4 |
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Mass |
kg |
4.0 |
5.0 |
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Mounting direction |
- |
Output shaft to face upward |
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Combined driver |
- |
HA-770-2 |
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CAD Downloads |
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Note1: * The table above shows output values of output shaft. |
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Product Drawing
List of Dimensions
Unit: mm
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Motor type |
KDU-13SB |
KDU-13WB |
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A |
42 |
56 |
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L |
80 |
94 |
| Please confirm dimensions and specifications with the drawing issued by Harmonic Drive LLC. | ||
