Description
OEM-Quality Caterpillar 6030 Swing Drive Assembly
Maintain rapid swing cycle times and precise superstructure placement on your 300-tonne mining excavator with a heavy-duty Caterpillar 6030 Swing Drive Assembly. Built specifically for Caterpillar 6030 / 6030 FS (formerly Bucyrus RH120-E / O&K RH120) excavators and face shovels, this slewing transmission converts high-pressure hydraulic motor output into immense rotational torque to drive the excavator’s upper structure across continuous loading operations.
Featuring a multi-stage planetary reduction gear set mated to a forged drive pinion shaft, this unit is engineered to absorb extreme side-load shock, heavy inertia shifts, and sudden swing acceleration/braking forces.
Key Features & Benefits
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Multi-Stage Planetary Gear Reduction: Multiplies hydraulic motor speed into high swing torque, allowing smooth slewing of heavy, fully loaded buckets against incline slopes.
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Forged & Induction-Hardened Drive Pinion: Heavy-duty integral pinion gear engages seamlessly with the excavator’s main slewing ring gear, resisting tooth pitting and fatigue failure.
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Integrated Hydraulic Swing Motor & Brake: Houses high-pressure hydraulic motors and automatic wet multi-disc holding brakes to provide positive upper-structure positioning during digging and dumping.
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Heavy-Duty Output Shaft Bearings: Oversized taper roller bearings absorb severe radial and axial thrust loads generated during rapid bucket rotation.
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Advanced Lubrication Passages: Designed for continuous oil circulation around planetary gear stages and bearings to dissipate heat during high-frequency swing cycles.
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Direct OEM Carbody Bolt-In: Machined to exact Caterpillar 6030 mounting flange specifications for direct installation onto the main lower carbody structure.
Verified Technical Specifications
| Parameter | Specification |
| Compatible Machine Model | Caterpillar 6030 / 6030 FS (Backhoe & Face Shovel) |
| Legacy Model Cross-Reference | Bucyrus RH120-E / O&K RH120 |
| Excavator Working Weight Class | ~287 – 300 tonnes (316 – 330 tons) |
| Drive System Architecture | Multi-stage planetary gear reduction + hydraulic swing motor |
| Brake Type | Integrated wet multi-disc swing holding brake |
| Pinion Gear Construction | Forged alloy steel, induction-hardened teeth |
| Application | Slewing Gear / Upper Structure Swing System (Dual / Multi-Drive Setup) |








