Floating Oil Seal Description
The Durocone Floating Oil Seal YNF16721 (Size: 104 × 117 × 22.4) is a heavy-duty mechanical face seal used in final drives, swing motors, track adjusters, and planetary gearboxes of excavators and other construction equipment. Featuring two alloy sealing rings and elastomer V-rings, it prevents oil leakage and contaminant ingress under high pressure and vibration. Engineered for extreme environments, this duo cone seal guarantees long service life in muddy, dusty, and water-prone work zones. Ideal for B2B buyers supplying maintenance teams, hydraulic service centers, and OEM-alternative part distributors.
Durocone Seal Technical Sheet
| Parameter |
Value |
| Part Name |
Durocone Floating Oil Seal / 浮动油封 |
| Part No. |
YNF16721 |
| Size Specification |
104 × 117 × 22.4 mm |
| Seal Type |
Mechanical Face Seal / Duo Cone Seal |
| Application Area |
Final Drive / Swing Motor / Gearbox |
| Material |
Alloy Steel + NBR or FKM |
| Operating Pressure |
Up to 1.0 MPa |
| Operating Temp. |
-30°C to +120°C |
| Compatible Brands |
Komatsu, Caterpillar, Hitachi, Doosan, etc. |
| Brand |
YNF |
| Country of Origin |
China |
| MOQ |
1 Set |
| Shipping |
Express / Air / Sea |
| Payment |
T/T, Western Union |
Floating Oil Seal Applications
| Application System |
Description |
| Excavator Final Drive |
Seals out dirt and water in travel motor gear reduction unit |
| Swing Motor Assembly |
Prevents oil loss and dust entry under rotation stress |
| Planetary Gearbox Housing |
Seals rotating and static components under heavy load |
| Track Adjuster System |
Maintains internal lubrication in cylinder chambers |
| Heavy-Duty Off-Road Gear |
Used in bulldozers, loaders, and drill rigs |
Durocone Oil Seal 104x117x22.4 Detail Display
What Is a Floating Oil Seal (Duo Cone Seal)?
A floating oil seal is a high-durability mechanical face seal commonly used in final drives, track rollers, and swing gear systems. It consists of two precision-lapped metal rings and two rubber V-rings that maintain internal lubrication and block dirt/water. YNF’s YNF16721 (104×117×22.4) model is trusted in excavator and construction equipment sealing systems for its longevity and resilience.
Related Products:
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Final Drive Bearing Kits
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Swing Motor Seal Assemblies
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Floating Seal Installer Tools
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Gearbox Cover O-Ring Sets
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NBR / FKM Ring Seals for Hydraulic Cylinders
FAQs:
-
Is this seal interchangeable with OEM part numbers?
Yes, dimensions match OEM fitments. Contact us for cross-reference list.
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How many hours does this seal last in real-world conditions?
Typically 3,000 to 5,000+ hours depending on terrain and maintenance.
