Onepiece guide shaft seat designed to support an optical axis bracket with a round seating surface and a flat mounting flange. This component provides a stable seating solution for a guide shaft, helping to maintain precise optical axis alignment in bench setups. The combination of a round seat and flat flange enables straightforward installation and reliable performance under load. Key benefits Precise alignment: round seat and flat flange help maintain accurate positioning of the optical axis and guide shaft. Stable, rigid mounting: singlepiece construction reduces play and improves rigidity for dependable alignment. Easy installation: flat flange design facilitates secure mounting with standard fasteners. Versatile sizing: available in multiple installation options to fit common guide shaft diameters. Consistent performance: designed to support reliable, repeatable alignment in optical and precision tasks. Key attributes Functionality: guide shaft seat, optical axis bracket, round seat, flat flange. Compatibility: installation sizes 8, 10, 12, 15, 16, 20, 25, 30, 35, 40, 50 (20mm) and a 20mm Circular option. Size options: includes a 20mm Circular variant and a range of standard installation sizes. Material: not specified in the listing. Performance: designed to provide stable support and precise alignment for optical axis setups. Sizes and installation options Installation sizes: 8, 10, 12, 15, 16, 20, 25, 30, 35, 40, 50 (20mm) 20mm Circular option also available What's included 1 piece per package (1PCS) Applications and use cases Optical bench alignment: secure a guide shaft and align an optical axis for laser or illumination experiments, photonics setups, or precision measurement tasks. CNC/precision tooling: mount a guide shaft to achieve stable, repeatable positioning in smallformat CNC machines or 3D printers. Calibration and alignment fixtures: use as a mounting seat for optical components and alignment brackets in calibration rigs, ensuring consistent axis alignment across assemblies. Notes Please verify the installation size and the corresponding shaft diameter to ensure proper fit with your system. Material specification is not provided in the listing; confirm material details with the supplier if required for your application.