Heavy EquipmentOff-Highway & Mining Truck
Axle housing casting (off-highway truck, ~2495 lbs)
Axle bore concentricity and perpendicularity critical. Gear tooth contact pattern after assembly. Shot blast + epoxy paint.
Specifications
Material
Cast Steel ASTM A27 Gr70-40 / A148 Gr80-50; Low alloy 4340 equivalent for heavy-duty
Material Class
Cast SteelLow alloy
Applicable Standards
ASTM A27 Gr70
Common Processes
Resin sand / furan no-bake (large complex differential housing); heat treat
NDT & Inspection
UT; MT; dimensional CMM (differential bore, wheel hub interfaces); hardness; VT
Typical Specs & Notes
Axle bore concentricity and perpendicularity critical. Gear tooth contact pattern after assembly. Shot blast + epoxy paint.
⚠ Caveats
Axle bore concentricity and perpendicularity critical.