Aluminium Gearbox Housing Casting with Bell Housing and Multiple Perimeter Bolt Holes

Bell housing cast in aluminium alloy (A356-T6 or equivalent) with CNC-machined bore, bolt circle, and flange face to ensure precise transmission-to-engine alignment. Bore diameter concentricity and flange face perpendicularity are controlled to your print tolerances, critical for hydraulic pump/motor units, industrial gearbox assemblies, and electric vehicle drivetrain integration. Produced by Ningbo Yujun under IATF 16949 and ISO 9001 certification. The Ningbo facility covers over 4,000 m² and handles near-net-shape casting, CNC milling, EDM, and in-house finishing — anodizing, sandblasting, and spray paint — for automotive, aerospace, and medical equipment projects. Send your casting and machining drawing with bore diameter, bolt circle PCD, and face perpendicularity tolerance for a bell housing production quotation. IATF 16949 traceability covers material certification from casting through final inspection.