Precision-engineered to Komatsu OEM standards (±0.015mm tolerance), the 65489140 travel motor assembly delivers 82,000+ Nm output torque for PC-series mining excavators. Direct replacement for PC2000/PC3000/PC4000 final drives in extreme ore handling conditions.
Mining Durability Economics
| Parameter | Specification | Economic Impact |
|---|---|---|
| Torque Density | 82,500 Nm @ 360 bar | 18% higher vs. aftermarket |
| Rebuild Cycles | 3× standard units | $214k savings/20k hrs |
| Oil Contamination Tolerance | ISO 21/18/15 | Filters last 2.3× longer |
| Seal Service Life | 12,000 hrs | 57% reduction in leak downtime |
| Gear Hardness | 62-64 HRC (20CrNiMo2) | 83% lower pitting failures |
Precision Compatibility
| Model | Mining Variants | Primary Applications |
|---|---|---|
| PC2000-6/8 | PC2000-6HD, PC2000-8M0 | Copper pit loading |
| PC3000-6/7 | PC3000-6SE, PC3000-7HD | Oil sands extraction |
| PC4000-6/11 | PC4000-6HD, PC4000-11 | Iron ore bench mining |
| Special Configs | PC4000H (High Altitude) | 4,500m+ operations |
Lifecycle Engineering
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Gear System
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7-planet reduction (23% load sharing improvement)
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Carburized 20CrNiMo2 gears (AGMA 14 quality)
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Bearing Protection
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Tapered roller bearings (L10=22,000 hrs)
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Labyrinth seal + magnetic plug system
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Motor Durability
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WC-Co coated pistons (2,400 HV)
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Shock-absorbing valve block
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Environmental Defense
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IP69K-rated connectors
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-40°C cold start capability
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