T-SM1RRV - Unanodized Aluminum SM1 Retaining Ring for Ø1" Lens Tubes and Mounts
Product Drawing
- 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" |
