CNC Turned Hex Flange Bushing, 304 Stainless Steel Custom Precision Mechanical Shaft Sleeve & Spacer, Factory Direct Supply

Serving as a radial support and transitional connection component in mechanical transmission shaft systems or fluid pipelines, this part features a disc-shaped body with a central through-hole and a hexagonal flat structure at the base. The wide flange face provides a stable mounting reference to distribute contact stress, while the hexagonal bottom offers wrench gripping surfaces. This design facilitates torque transmission and rigid locking in confined spaces, making it common in guiding mechanisms of automation equipment, internal supports for valve actuators, and positioning components for tooling fixtures.

The manufacturing process leverages the high-precision rotational machining capabilities of CNC lathes, strictly controlling the perpendicularity between the flange end face and the central inner/outer diameters, as well as the coaxiality of the neck step relative to the mounting surface. This prevents runout or poor sealing surface contact after assembly. To address the high toughness of metal materials, cutting parameters are optimized to suppress deformation and eliminate burrs. Special attention is given to smoothing the chamfers on flange edges and hole openings, ensuring operational safety and meeting aesthetic cleanliness requirements for clean environments. For tight clearance fits, outer diameter tolerances are strictly controlled to ensure smooth insertion and removal without looseness.

Our factory is equipped with high-precision CNC lathes, machining centers, and coordinate measuring machines (CMM). We support non-standard customization based on 2D/3D drawings, including material selection (such as stainless steel, carbon steel, aluminum alloy), thread standards, and surface treatments. Adhering to the ISO 9001 quality management system, our production process covers material traceability, go/no-go gauge inspection of critical dimensions, and 100% visual inspection. We provide material certificates and inspection reports to ensure that batch-delivered products meet the stringent standards of the petrochemical, medical device, and high-end equipment manufacturing industries in terms of fit precision and consistency.