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| Coad | 670742 | Type | Free-Space Rotation Mount | |
| Optical Component Diameter (mm) | 25.40 | Optical Element Thickness (mm) | 13.00（MAX） | |
| Center Height (mm) | 27.00 | Rotation Angle (°) | 360 | |
| Material | 6061-T6 Aluminum Alloy | With U-Shaped Slot (Yes/No) | YES | |
| Graduation Accuracy | 2° | Adjustment Precision | - | |
| Mounting Hole Specifications | SM1 Threaded Hole | Bottom Threaded Hole Specifications | M4 | |
| Radial Runout | 30μm | Surface Treatment | Black Anodized | |
| Included Retaining Ring | 1 | Included Wrench | 1.5mm Hex Key x 1 + 2.0mm Hex Key x 1 |
LBTEK free-space rotation mount is designed for mounting anisotropic optical components (such as polarization optics). It features a central SM-series internal threaded mounting hole and includes one SM-series retaining ring for securing the optical element. The mount allows 360° continuous rotation with a graduation accuracy of 2° and numeric markings every 20°. A side set screw is provided to lock the rotation securely. The base has an M4-threaded hole for easy connection to optical posts.
The LBTEK free-space rotation mount is designed for mounting Ø25.4 mm and Ø50.8 mm anisotropic optical components. It allows full 360° rotation with 2° per-division graduation accuracy and 5′ per-division vernier resolution. A side set screw enables locking the rotation body. Two countersunk locking screws on the front face allow the graduated dial to be independently adjusted and zeroed without disturbing the optical element’s position—ideal for aligning the waveplate’s fast axis with the dial markings. Once aligned, the dial can be secured by tightening the countersunk screws. The base includes an M4-threaded hole for convenient post mounting.
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