Heavy EquipmentLarge Mining Truck
Rear wheel hub casting (~4849 lbs)
Ultra class trucks (Caterpillar 797, Komatsu 980E range). Rear hub carries electric drive motor torque arm or mechanical axle. Critical fatigue path – Level 1 soundness.
Specifications
Material
Cast Steel ASTM A148 Gr105-85 / Gr120-95; alloy steel for ultra-class
Material Class
Cast SteelAlloy Steel
Applicable Standards
ASTM A148 Gr105
OEM References
KomatsuCaterpillar
Common Processes
Resin sand / no-bake; Q&T
NDT & Inspection
UT (E446 Level 1); MT; dimensional CMM; hardness; balance check
Typical Specs & Notes
Ultra class trucks (Caterpillar 797, Komatsu 980E range). Rear hub carries electric drive motor torque arm or mechanical axle. Critical fatigue path – Level 1 soundness.
⚠ Caveats
Critical fatigue path – Level 1 soundness.