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307-7342
CAT
307-7342
Hello, Equipment Owners and Maintenance Chiefs! I am the supplier who specializes in solving problems like "sluggish travel," "single-side tracking," "grinding noises," and "slipping on inclines." Today, I’m recommending a "heavy iron assembly that looks bulky but acts as the 'final mile' executor of your machine's mobility"—the Heavy-Duty Final Drive Assembly for Construction Machinery.
Anyone operating excavators, dozers, or rotary drills knows that even if the hydraulic motor spins freely, power won't reach the ground without a reliable final drive. The final drive is the "bridge" connecting the motor to the sprocket, converting high-speed, low-torque rotation into low-speed, high-torque force. Many cheap final drives on the market look similar but use ordinary cast iron housings and gears machined from standard steel without carburizing or quenching. Under heavy loads or during bog-outs in mud, the housing cracks from vibration, and the gear teeth wear down or chip within days. Our Final Drive Assembly is specifically engineered for heavy-duty construction machinery. It doesn’t just rotate; it absorbs impact, resists wear, and seals tight against leaks. Choose us to equip your machine with "tendons of steel," ensuring it remains sure-footed and powerful in mines, swamps, and on steep grades.
Cast Steel Housing: Impact-Resistant, No Cracking:
The final drive absorbs direct ground shocks; the housing must be tough.
Material: The housing is constructed from cast steel. This material offers excellent toughness and high strength with extreme impact resistance—unlike ordinary cast iron that becomes brittle under stress, especially in cold weather.
Process: Manufactured via precision casting and CNC machining. Internal ribs are reinforced, and wall thickness is uniform, enabling it to withstand massive torsional forces and ground impacts. Finished with a yellow spray-paint coating, it not only resists rust and weathering but also gives the machine a sharp, rugged appearance.
Alloy Steel Gears: Wear-Resistant, No Chipping:
Gears are the core of power transmission; they must be built to last.
Material: The internal gear set is forged from premium alloy steel. This material provides high hardness, excellent toughness, and superior impact resistance.
Process: Gears undergo precision machining and heat treatment. The tooth surfaces achieve extreme hardness for maximum wear resistance, while the core retains toughness to absorb shocks. No matter how much you thrash it in a rock pile or start heavy loads on a steep grade, the gears may deform slightly but will never fracture or lose a tooth. Optimized tooth geometry ensures smooth transmission, low noise, and high efficiency.
High-Pressure Sealing: Eliminates "Internal" and "External" Leaks:
A final drive's worst enemies are oil leaks and contaminant ingress.
Sealing: Features premium oil seals and gaskets. Shaft seals are abrasion-resistant and pressure-rated; mating surfaces are flat and sealed with anaerobic compound.
Performance: Ensures internal lubricants stay in, and external mud, water, and grit stay out—even under high-pressure conditions. This maintains optimal lubrication, extending the service life of internal bearings and gears.
Stable, Durable, Ready to Install:
Quality: We enforce strict production controls to ensure every assembly meets high industry standards. Expect stable performance and an extended service life—your guarantee for reliable operation.
Compatibility: Designed specifically for various heavy construction machinery. All mounting hole patterns, port sizes, and flanges are precisely matched. Install and use immediately—no drilling, shimming, or debugging required. It fits your equipment perfectly.
Parameter | Specification |
|---|---|
Product Name | Final Drive Assembly / Travel Reducer / Wheel Hub Reduction Gear |
Housing Material | Cast Steel |
Gear Material | Alloy Steel |
Manufacturing Process | Precision Casting & CNC Machining |
Surface Treatment | Yellow Spray-Paint |
Key Properties | High Torque Output, Impact Resistant, Wear Resistant, Long Service Life |
Compatible Equipment | Excavators, Bulldozers, Rotary Drills, and Other Heavy Machinery |
Mining Operations: Providing reliable low-speed, high-torque output on hard rock and rough terrain, handling heavy loads on steep grades.
Wetlands & Swamps: Delivering sufficient traction and torque in soft, muddy conditions to help machines recover from bog-downs.
Municipal Engineering: Ensuring smooth transmission and quick response in confined spaces and during frequent turning operations.
Equipment Overhaul: Replacing old, cracked, leaking, or internally worn final drives to restore travel performance.
Exact Match, Ready to Ship: Just provide your equipment model, and we ship immediately. No need to measure bolt patterns or count teeth; hassle-free.
Tough Housing, No Leaks: We guarantee our housing is tough, the gears are resilient, and the seals are effective. After installation, operation is powerful, temperatures stay low, and there are no leaks or chipped teeth. If issues arise, we replace it.
Value for Money: We don't sell the cheapest, because those use brittle cast iron and soft steel gears that fail within months. We sell the most durable. Do the math: using our assembly adds thousands of service hours, saving you far more in repair and downtime costs than the initial price.
A Quick Tip for the Mechanics:
Brothers, installing this assembly is physically demanding and technical work.
Safety First. The assembly is heavy. Always use lifting equipment (e.g., chain hoist, crane) or secure the machine with sturdy jacks and timbers. Never work under an unsupported machine.
Clean Thoroughly. Clean oil, grease, and grit from the mounting surface before removal. Clean threads on hydraulic ports to prevent contaminants from entering the new assembly.
Inspect Related Parts. While replacing the assembly, inspect the drive sprocket, track, and idler for wear. If the sprocket teeth are severely worn, a new assembly will wear out rapidly.
Install Correctly. Align mounting holes carefully; never force-fit. Tighten bolts diagonally in stages for even pressure. Tighten fittings securely but avoid stripping threads.
Bleed Air & Break-In. After installation, fill with the specified grade of gear oil. Start the machine and slowly operate the travel controls to bleed air. Run the machine under no-load or light-load conditions for a few hours to break in the new gears before full operation. Routinely check fluid levels and seals. Work safely and go home in one piece!
FEED BEAM
ROCK DRILL PARTS
AIR COMPRESSOR
PUMP
DTH DRILLING TOOLS
TOP HAMMER
PDC DRILL BITS
EXPLORATION (CORE DRILLING TOOLS)
ROTARY DRILLING TOOLS
RAISE DRILLING TOOLS
GEOTECHNICAL ENGINEERING TECHNOLOGY
HAND TOOLS
Customized Packaging Solutions:
All products are protected with heavy-duty, shock-resistant packaging (including wooden crates, steel frames, and anti-corrosion wrapping) to ensure safe arrival even under long-distance and harsh transport conditions.
Flexible & Global Logistics:
We support multiple shipping methods, including sea freight, air freight, and rail transport, and offer flexible terms such as FOB, CIF, and DAP to meet your delivery schedule and cost requirements.
Fast Lead Times & Order Support:
With a large inventory of standard parts and efficient production scheduling, we can respond quickly to urgent orders while maintaining consistent quality.
After-Sales & Technical Support:
Our dedicated team provides professional technical consultation, installation guidance, and after-sales service to help you maximize equipment performance and minimize downtime.
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| 2658607696 | MOTOR,M7,KEYED |
| 303-7504 | Steering wheel |
| 6J-1144 | BEARING |
| 6E-3524 | pump |
| 454-0277 | Stopper |
| 541-8043 | Cylinder |
| 9M-1328 | BEARING |
| 307-7342 | Final drive assembly |
| 9W4493 | blade |
| 2459951 | track roller |
| 1926445 | hydraulic cylinder |
| 001021-004 | Bushing |
| 001022-001 | Shaft |
| 001110-008 | Seal oil |
| 007947-054 | KIT SEAL |
| 013487-001 | Valve |
| 022893-001 | SWITCH, TEMPERATURE |
| 034562-051 | O-RING ADJUSTING SCREW |
| 007947-073 | sw comp oil filter bypass 30 psi |
| 001479-058 | GAUGE |
| 001022-056 | YOKE, Shaft |
| Q:What is your terms of packing? |
| A:Generally, we pack our goods in neutral white boxes and brown cartons. If you have legaly registered patent ,we can pack the goods inyour branded boxes after getting your authorization letters. |
| Q:What is your terms of payment? |
| A: T/T 30% as deposit, and 70% before delivery. We will show you the photos of the products and packages before you pay the balance. |
Q: What is your terms of delivery? |
| A: EXW, FOB, CFR, CIF, DDU, FCA. |
| Q:How about your delivery time? |
| A: Generally. it wlltake 5 to 12 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. |
Q:Can you guarantee that the goods are original? |
| A:Yes, we fully guarantee that the goods are original and you can inspect them carefully when they arrive at your address. |
| Q:Do you test all your goods before delivery? |
| A:Yes, we have 100% test before delivery. |
| Q:How do you make our business long-term and good relationship? |
1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from. |




