T-SM1RRV - Unanodized Aluminum SM1 Retaining Ring for Ø1" Lens Tubes and Mounts
T-SM1RRV - Unanodized Aluminum SM1 Retaining Ring for Ø1" Lens Tubes and Mounts
- SM05-, SM1-, or SM2-Threaded Unanodized Retaining Rings
- Ideal for Use With Our Aluminum Vacuum-Compatible SM-Threaded Components
- Vacuum Compatibility: >10-6 Torr
- Thread SM1 (1.035"-40)
- Thickness 0.08" (2.0 mm)
- Compatible Spanner Wrench T-SPW606, T-SPW602 or T-SPW801
- Compatible Optic Mounts Any Internally SM1-Threaded Mount
- Clear Aperture Ø0.90" (Ø22.9 mm)
These aluminum SM05-, SM1-, or SM2-threaded retaining rings have identical thread specifications, thickness, and clear aperture when compared to our standard retaining rings of the same size. Their lack of anodization and 6061-T6 alumimun construction allows them to be used at vacuum levels down to 10-6 Torr. They are designed for use with our SM-threaded vacuum-compatible components. Each ring is double vacuum-bagged for clean room use.
| Vacuum Specifications | |
|---|---|
| Vacuum Compatibility as Packageda | >10-6 Torr |
| Material | 6061-T6 Aluminum |
| Preparation and Packaging | Chemically Cleaned and Double Vacuum-Bagged |
| Aluminum Outgassing Rate at 20 °C | 7.6 x 10-9 Torr-Liters/s/cm2 |
| SM1 (1.035"-40.0) Threading | |||
|---|---|---|---|
| Internal Thread, UNS-2B | External Thread, UNS-2A | ||
| Min Major Diameter | 1.0350" | Max Major Diameter | 1.0339" |
| Min Pitch Diameter | 1.0188" | Min Major Diameter | 1.0288" |
| Max Pitch Diameter | 1.0234" | Max Pitch Diameter | 1.0177" |
| Min Minor Diameter (and 83.3% of Thread) |
1.008" | Min Pitch Diameter | 1.0142" |
| Max Minor Diameter (and 64.9% of Thread) |
1.014" | Max Minor Diameter | 1.0068" |