COMPLETE SET: Includes one BK40 fixed end support and one BF40 floating end support for SFU1605 ball screw applications in CNC machinery, providing both fixed and floating support configurations for your projects. CONSTRUCTION: Made from 45 steel bearing material with a blackened treatment, these end supports deliver rigidity and stability during operation, helping maintain accurate positioning in CNC applications. SUPPERIOR PERFORMANCE: Engineered for rigidity and precise specifications, these end supports maintain stable rotation and minimal deflection, resulting in smoother operation and an extended lifespan for ball screw systems. PROFESSIONAL SPECIFICATIONS: Standard sized supports with precisely crafted dimensions ensure proper alignment and secure mounting for CNC machine tool parts, compatible with industry standard ball screw systems. APPLICATIONS AND USE SCENARIOS: Use in CNC milling centers (SFU1605 axis) to provide simultaneous fixed and floating support, improving axial rigidity and reducing endplay for precision milling. Use in CNC routers or multiaxis machines where SFU1605 screws drive X or Y axes, delivering stable rotation and reduced deflection during speed travel. Use in automation equipment or 3D printers requiring precise linear motion, where BK40 and BF40 supports enable reliable mounting and longterm performance.