SWR
Ribbed Lock Washers
Dimension Drawing
Dimensions/Specifications/CAD
| Part Number | Nominal | d | D | t | h | Qty per Pack | Mass (g) |
|---|---|---|---|---|---|---|---|
| SWR-3 | 3 | 3.20～+0.3 | 5.5-0.3～0 | 0.45 | 0.9 | 20 | 0.05 |
| SWR-4 | 4 | 4.30～+0.3 | 7-0.36～0 | 0.5 | 1 | 20 | 0.08 |
| SWR-5 | 5 | 5.30～+0.3 | 9-0.36～0 | 0.6 | 1.1 | 20 | 0.14 |
| SWR-6 | 6 | 6.40～+0.36 | 10-0.36～0 | 0.7 | 1.2 | 20 | 0.23 |
| SWR-8 | 8 | 8.40～+0.36 | 13-0.43～0 | 0.8 | 1.4 | 10 | 0.43 |
| SWR-10 | 10 | 10.50～+0.43 | 16-0.43～0 | 1 | 1.6 | 10 | 0.82 |
| SWR-12 | 12 | 130～+0.43 | 18-0.43～0 | 1.1 | 1.7 | 10 | 0.89 |
| SWR-16 | 16 | 170～+0.43 | 24-0.52～0 | 1.3 | 2.1 | 10 | 2 |
| SWR-20 | 20 | 210～+0.52 | 30-0.62～0 | 1.5 | 2.4 | 5 | 3.4 |
Material/Finish
| SWR | SWRS | |
|---|---|---|
| Main Body | SCM435（Hardness 425-495 HV）Ferrosoferric Oxide Coating（Black） | SUS304 |
Application
Vibration Resistant
Characteristics
- Ribs on both sides of the washer hook onto the bolt bearing surface and intended attachment section to prevent looseness due to vibration.
- Washers for loosing prevention. For connecting locations that cannot use other means such as adhesives.
- More effective for loosing prevention than standard spring washers.
Vibration test comparison
