Komatsu HD785-7 Wheel Station

Description

OEM-Quality Komatsu HD785-7 Wheel Station Assembly

Minimize bench overhaul downtime and ensure maximum rear rimpull across steep haul routes with a heavy-duty Komatsu HD785-7 Wheel Station Assembly. Precision-engineered for Komatsu’s 100-ton class (91.7-tonne nominal payload) off-highway rigid dump trucks, this complete modular wheel-end assembly integrates the wheel hub, axle spindle interface, double-reduction planetary gearing, heavy-duty tapered roller bearings, Duo-Cone mechanical seals, and force-cooled braking system into a single unit.

Installing complete factory-aligned wheel stations eliminates gear mesh mismatches, speeds up scheduled major components replacements, and provides exceptional durability under heavy payload acceleration and continuous downhill retarding.

Key Features & Benefits

• Modular Complete Wheel End: Combines the structural wheel hub, planetary reduction gearing, heavy axle bearings, and oil-cooled brake group into one ready-to-install drop-in module.

• Double-Reduction Planetary Final Drive: Features Komatsu’s planetary gear design (7.00:1 planetary ratio / 19.68:1 total final reduction ratio) to multiply transmission speed into immense wheel torque.

• Integrated AP-FOUR Continuously Cooled Braking: Encloses Komatsu’s wet multi-disc brake system, supplying continuous oil cooling for fade-free service braking and automatic retarder control (ARAC) on steep downhill grades.

• Duo-Cone Lifetime Mechanical Seals: Heavy metal-to-metal face seals lock gear oil inside while providing complete protection against fine pit silica dust, slurry, mud, and water.

• Direct OEM Frame & Axle Fitment: Manufactured to exact Komatsu HD785-7 factory tolerances for direct installation on standard rear axle housing flanges and 27.00-R49 rim assemblies.

Verified Technical Specifications