Caterpillar 777D Wheel Station

Description

OEM-Quality Caterpillar 777D Wheel Station Assembly

Minimize bench overhaul downtime and ensure high torque conversion across your rear drive axles with a heavy-duty Caterpillar 777D Wheel Station Assembly. Precision-engineered for Caterpillar’s 100-ton class (91.6-tonne nominal payload) off-highway mining trucks, this modular wheel-end group combines the structural wheel hub, axle spindle mount, double-reduction planetary gearing, heavy-duty tapered roller bearings, Duo-Cone seals, and force-cooled braking enclosure into a single pre-aligned unit.

Replacing complete pre-assembled wheel stations eliminates component wear mismatches, speeds up scheduled major maintenance intervals, and ensures long service life under high radial loads and heavy dynamic braking forces.

Key Features & Benefits

• Modular Wheel-End Solution: Combines the wheel hub, double-reduction planetary gear sets, wheel bearings, and oil-cooled braking system into one drop-in service module.

• High-Torque Planetary Final Drive: Features Caterpillar’s robust planetary arrangement (6.65:1 planetary ratio / 18.23:1 total reduction ratio) to convert differential speed into immense rim torque.

• Liquid-Cooled Multi-Disc Braking: Integrates Caterpillar’s fade-resistant, force-cooled multi-disc braking system to deliver continuous retarding power on long downhill hauls.

• Heavy-Duty Duo-Cone Face Seals: Keeps internal gear oil contained while completely sealing out abrasive slurry, pit mud, fine silica dust, and moisture.

• Direct OEM Fitment: Manufactured to exact Caterpillar 777D factory tolerances for direct bolt-on installation on standard rear axle housings and 27.00-R49 rim assemblies.

Verified Technical Specifications