Light-weight Harmonic Drive Gear (CSD-20-160-2A-GR-SP)
| Registration date | 3/27/2008 |
|---|---|
| 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
Deployment mechanisms for solar cell paddles, antennas, etc.
Specifications
| Property | Light-weight type | Existing product |
|---|---|---|
| Dimensions (mm) | 70 φ × 14 L | 70 φ × 35.0 L |
| weight (g) | 103 g | 370 to 300 g |
| Reduction ratio | 160 | ibid. |
| Lubricant | Synthetic hydrocarbon oil, grease, etc. | solid lubricant |
| Angle transmission accuracy | ≦60 arc seconds | ≦30 arc seconds |
| Operating temperature | -10 to +80 °C | -10 to +80 °C |
