3T-6541 3T6541 Excavator Final Drive Floating Seal 730 730C

1. Quick Details of  seal 3T-6541:

2. 3T-6541 picture:

3. Service part number :

4. FAQ

Q: What’s the purpose of this floating seal?
A: This is a floating (duo cone) seal, a heavy-duty mechanical seal designed for construction machinery like excavator track rollers and bulldozer axles. It creates a tough, contamination-resistant barrier that keeps oil inside the assembly and keeps abrasive dirt, mud, and water out, even under shock loads and misalignment.

Q: What materials make up each part?
A: A full set includes two metal sealing rings and two rubber elastomer rings. The metal rings are typically made of high-chrome cast iron or hardened alloy steel. The rubber rings are usually Nitrile (NBR) rubber for standard applications, or FKM rubber for high-temperature or aggressive environments.

Q: Why are these materials chosen?
A: The high-chrome metal rings offer excellent hardness, wear resistance, and corrosion resistance, maintaining a smooth, leak-proof sealing face over long periods. The rubber rings provide the preload needed to keep the metal faces pressed together, while also absorbing vibration and accommodating shaft misalignment. Nitrile rubber works well with standard hydraulic oils, while FKM handles higher temperatures and more demanding fluids.

Q: Why are these materials chosen for a floating seal?
A: The high-chrome cast iron rings have exceptional hardness and wear resistance, allowing them to maintain a smooth, leak-tight sealing face even under heavy loads and in dirty conditions. The rubber elastomer rings provide the necessary preload to keep the metal faces pressed together, while also accommodating shaft misalignment and absorbing shock. Nitrile rubber offers excellent compatibility with mineral oils, while FKM handles higher temperatures and more aggressive fluids.

5. Exhibition and Wearhous

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