Optimize your drivetrain with the Cat® 609-7009 Planetary Gear Drive. Engineered with high-strength ductile iron for 320, 323, and 330 series excavators, this assembly ensures superior torque transmission and engine efficiency. Built for heavy-duty load distribution and long-term reliability. Shop professional B2B heavy machinery parts for international export.
The Cat® 609‑7009 Planetary Gear Drive is a high‑precision power transmission assembly engineered for medium‑to‑large Caterpillar excavator and forestry machine power trains. Consisting of a centrally aligned sun gear, matched planetary gears, and a heavy‑duty carrier assembly, this design evenly distributes high torque loads across multiple gear teeth simultaneously. Delivering exceptional power density and mechanical transmission efficiency, it ensures stable, smooth torque output for high-stress digging, upper-structure swinging, and high-tractive travel under heavy‑duty working conditions.
Optimized Load‑Sharing Architecture: The planetary arrangement distributes severe torsional forces across multiple contact points, drastically reducing single‑tooth mechanical stress and preventing premature tooth shear during high-shock operations.
Heavy‑Duty Ductile Iron Construction: The outer gear carrier housing is cast from premium spheroidal graphite iron, delivering superior structural tensile strength and impact resistance to withstand extreme reversals without cracking.
High‑Efficiency Power Transmission: Precision‑shaved and ground gear surfaces minimize frictional drag and heat generation, optimizing volumetric power transfer to track sprockets or swing bearings while preserving engine fuel efficiency.
OEM‑Grade Precision Fitment: Precision-manufactured to strict CAT factory tolerances, ensuring smooth backlash characteristics and vibration-free integration with final drive or swing planetary groups.
| Technical Parameter | Specification Details |
|---|---|
| Primary Part Number | 609‑7009 (6097009) |
| Product Classification | Planetary Gear Drive / Reduction Assembly |
| Housing & Core Materials | High-Strength Ductile Spheroidal Graphite Iron & Carbon Alloy Steel |
| Surface Treatment | Carburizing, Gas Nitriding, & High-Temperature Through-Hardening Process |
| System Application Group | Power Train, Final Drive Travel Motor, & Swing Drive Reduction Units |
| Core Mechanical Function | High‑Torque Speed Reduction & Radial Load‑Distribution Output |
This heavy‑duty planetary assembly interfaces perfectly with CAT 20‑to‑30‑ton class civil construction and forestry equipment groups:
Hydraulic Crawler Excavators: 320, 320D2 FM, 323, 323F SA, 325, 330, 330 GC, 330D2, 330D2 L, 333.
Tracked Forestry Machines: 538 and FM538 Series Forestry Harvesters / Log Loaders.
Specialist Carrier Equipment: Custom OEM crawler undercarriages and final reduction drive systems.
Supplier Identification: Xuzhou Sinoswift Import & Export Co., Ltd.
Contact/Mobile Support: +86 13701956981
Email Address: [email protected]
Commercial Supply Frame: Minimum Order Quantity (MOQ): 1 Unit | Limited Factory Warranty: 6‑12 Months
Logistics Provision: Anti-Corrosion Treatment and High-Impact Export Wooden Box Packing. Full Logistics Support for Ocean Freight (FCL/LCL), Air Freight, and Global Fast-Track Express Couriers
All original equipment manufacturer names, registered trademarks, logo symbols, and equipment model references are deployed strictly for field installation compatibility cross-mapping and unit alignment identification. Restore your machine's tractive power, braking hold, and swing torque parameters. Contact our technical service desk today to lock in wholesale container-load pricing or to coordinate a technical delivery window!