Multi-Hole Circular Mounting Flange

As a critical connecting component in mechanical transmission modules or rotating mechanisms, this part features an annular disc design with multiple counterbored mounting holes evenly distributed along the outer circumference. The inner ring is equipped with precision locating steps and slot interfaces. This layout ensures stable support and coaxiality constraints for moving parts, making it ideal for applications such as rotary table bases, bearing seat fixing rings, or servo motor mounting brackets in automation equipment, where high-rigidity assembly is required.

The core of machining this type of disc-shaped part, characterized by multiple hole positions and internal/external steps, lies in ensuring the circular indexing accuracy of the outer mounting hole pattern and the coaxiality of the inner hole relative to the outer circle. Due to the ring-shaped structure and local thin-walled areas, stress deformation can occur during cutting. Therefore, reasonable clamping solutions and optimized tool paths are employed to control flatness and perpendicularity. In particular, the dimensional tolerance and surface roughness of the inner step directly affect the mating performance of subsequent bearings or seals, serving as a key control point in dimensional inspection.

Supported by an ISO 9001 quality management system, our factory is equipped with high-precision vertical machining centers and coordinate measuring machines (CMM), enabling stable micron-level geometric tolerance control. For such non-standard custom structures, we conduct process evaluations based on customer-provided 3D models and 2D drawings. We offer one-stop delivery services ranging from material selection (such as aluminum alloy, stainless steel, carbon steel, etc.) and precision milling to surface treatments like sandblasting and anodizing, ensuring consistent appearance and assembly interchangeability across batches.