Harmonic Drive Gear (SHF-20-160-2A-GR-SP)
| Registration date | 2/14/2008 (7/13/2011) |
|---|---|
| JAXA development group | Research Unit II, Research and Development Directorate |
| View diagram | See Attachment 1 |
| Environmental resistance | See Attachment 2 |
| Patent number (publication number) |
N/A |
| Reference | N/A |
| Satellite and launch date | To be supplied after launch |
| Note | N/A |
Manufacturer
Harmonic Drive Systems Inc.
Azumino-shi, Nagano, Japan
http://www.hds.co.jp/english/
Features
- A compact and light-weight product for space applications derived from one of the latest commercial products
- A hollow-shaft construction that makes wiring harnesses easier
- The existing product has already been adopted by overseas space agencies, and has international competitiveness.
Applications
Solar cell paddle drive mechanisms, antenna pointing mechanisms, robot arm joints and other rotational drive mechanisms
Specifications
| Property | Light-weight type | Existing product |
|---|---|---|
| Dimensions (mm) | 82 φ × 30.4 L | 70 φ × 35.0 L |
| weight (g) | 221 g | 370 to 300 g |
| Reduction ratio | 160 | ibid. |
| Lubricant | Synthetic hydrocarbon oil, grease, etc. | solid lubricant |
| Angle transmission accuracy | ≦30 arc seconds | ≦30 arc seconds |
| Operating temperature | -10 to +80 °C | -10 to +80 °C |
