Onepiece guide shaft seat / optical axis bracket — circular flatflange installation, made from 45 steel. Supplied as 1PCS, designed to provide rigid, accurate support and alignment for guide shafts and optical axes. Key benefits Precise alignment: circular seat holds shafts and optical axes securely to maintain concentricity and reduce runout. Strong and durable: machined from 45 steel for rigidity, wear resistance, and long service life in industrial applications. Easy to install: flat flange design simplifies mounting to panels or frames and provides a stable bearing surface. Versatile compatibility: available for a wide range of shaft diameters, enabling use across many machine types without custom parts. Product highlights and specifications Quantity: 1PCS Material: 45 steel Type: round seat / flat flange guide shaft seat (optical axis bracket) Mounting style: flat flange installation, circular design Compatible shaft diameters (mm): 6, 8, 10, 12, 13, 15, 16, 20, 25, 30, 35, 40, 50 Shape: circular / round seat Function: support and locate guide shafts, optical axes, and linear elements Performance and suitability Provides a rigid bearing point to minimize shaft deflection under load. Improves positioning accuracy for linear motion systems and optical alignments. Robust material and simple geometry make it suitable for repeated assembly and disassembly. Typical applications CNC machines, linear slides, and machine tools — mount and support guide shafts for reliable linear motion. Optical systems and laser alignment fixtures — secure optical axis components for stable, repeatable alignment. Automation, robotics, and 3D printers — act as a compact bracket to locate shafts and reduce vibration in moving assemblies. Installation notes Use appropriate fasteners and a flat mating surface for secure mounting of the flange. Ensure shaft and seat diameters match precisely for concentricity and load distribution. Inspect for proper seating and alignment during assembly to achieve performance. This 45steel circular guide shaft seat offers straightforward, durable support for shafts and optical axes where a compact, flatflange mounting solution is required.