24100U1743S24 Floating Seal

24100U1743S24 Floating Seal ForSK330LC-6E SK480LC-6E SK350-8 SK485-8 SK350-9 Kobelco Excavator

Product Overview

The 24100U1743S24 Floating Seal is a heavy-duty mechanical seal designed to operate in the most demanding environments. Installed in the final drive where the rotating hub meets the stationary axle housing, it consists of two precisely matched, lapped metal sealing rings that float against each other, creating a dynamic, self-adjusting barrier. These rings are energized by robust rubber O-rings that also provide static sealing and absorb shock. This dual-ring design is uniquely effective at retaining high-viscosity gear oil inside the drive while actively excluding the harshest external contaminants—dirt, mud, water, and debris. Our replacement seal is manufactured to exact OEM specifications for hardness, flatness, and material composition, ensuring a perfect, long-lasting seal.

Key Features & Benefits

• Precision OEM Fit & Compatibility: A direct replacement for part number 24100U1743S24, guaranteeing perfect dimensional accuracy and sealing performance for the specified Kobelco excavator models.

• Ultimate Final Drive Protection: Creates a robust, dynamic barrier that reliably contains gear lubricant and aggressively blocks external contaminants, the primary causes of bearing, gear, and seal failure.

• Durable, Hardened Construction: Made from high-grade alloy steel with precision-lapped, hardened sealing faces for exceptional wear resistance and long service life under continuous rotation and heavy loads.

• Prevents Costly Chain-Reaction Failures: A single leaking seal can lead to oil loss, contamination, bearing seizure, and catastrophic gear damage—a repair costing many times the price of proactive seal replacement.

• Designed for the Toughest Conditions: The duo-cone design is uniquely suited to withstand the extreme dirt, mud, water immersion, and impact shocks that undercarriage components endure daily.

• Essential for Final Drive Service: This seal is a mandatory replacement item during any final drive disassembly, sprocket replacement, or track motor rebuild to ensure future reliability and prevent premature failure.

Technical Specifications

• Part Number: 24100U1743S24

• Application: Final Drive Floating Seal / Duo-Cone Seal / Mechanical Face Seal

• Compatible Models: Kobelco SK330LC-6E, SK480LC-6E, SK350-8, SK485-8, SK350-9 Excavators

• Seal Type: Two-Piece Matched Metal Rings with Rubber O-Rings

• Material: Hardened Alloy Steel

Frequently Asked Questions (FAQ)

Q1: What are the symptoms of a failed 24100U1743S24 floating seal?
A: The most obvious signs include:

• Gear oil leaking from the inner hub of the final drive, near the sprocket or track frame.

• Visible oil streaks or puddles under the undercarriage.

• Contamination inside the final drive (if disassembled for inspection).

• Grinding or whining noises from the final drive due to bearing failure caused by lubricant loss or contamination.

Q2: Is this sold as a single seal or a complete set?
A: The 24100U1743S24 Floating Seal is typically sold as a complete set, which includes the two matched metal sealing rings and the necessary rubber O-rings or toric seals required for proper installation and function.

Q3: Can I replace this seal myself, or is it a major repair?
A: Replacing a final drive floating seal is a major repair. It requires:

• Removing the track chain and final drive assembly from the machine.

• Fully disassembling the final drive housing to access the seal cavity.

• Specialized tools (bearing pullers, presses) and a clean work environment.

• This is strictly a task for experienced heavy equipment mechanics.

Q4: Why should I replace both seals when servicing one final drive?
A: Seals wear at similar rates. If one side has failed, the other is likely near the end of its service life. Replacing both the inner and outer seals (where applicable) during a single repair ensures maximum longevity and prevents a return visit for the same issue on the other side.

Q5: How does a floating seal differ from a regular oil seal?
A: Unlike a standard lip seal that contacts a rotating shaft, a floating seal uses two hardened metal rings that rotate against each other. This design is far more resistant to the extreme contamination, high shock loads, and harsh abrasion found in track and final drive applications. Standard lip seals would fail rapidly in these conditions.

Need Help Confirming Compatibility?
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