Stepped Machined Shaft Adapter with Square Male End and Large Circular Flange Base

Square male end flat-to-flat dimension and bore-to-square-end concentricity are the primary control callouts for an aluminium shaft adapter with square drive end and circular flange base; flat-to-flat deviation outside tolerance produces a loose fit in the mating drive socket that transmits rotational backlash, while bore eccentricity to the square profile offsets the driven shaft from the adapter centreline and introduces a bending moment at operating torque. Suzhou Dazhi Intelligent Manufacturing Technology (Suzhou, Jiangsu) CNC-mills and turns this aluminium shaft adapter with stepped profile and large circular flange base on CNC milling equipment, milling and turning, and surface grinding at their facility (north of 4,000 m²), with square flat-to-flat, bore ID, and flange face runout confirmed to your print requirements at first article inspection. Dazhi's Suzhou facility specialises in non-standard automation parts, aerospace components, and medical parts for automation, robotics, and OEM manufacturing applications. We can quote once we have square end dimensions, bore ID fit class, flange specification, and aluminium grade from your drawing. For costed feedback from our suzhou production team, serving automotive and military applications.