64-78-25 duocone seal provides reliable floating sealing for heavy-duty track and final drive systems under harsh conditions.
Durocone / Duo Cone floating seal design
Size: 64 × 78 × 25 mm
Excellent wear resistance and impact resistance
Superior sealing against oil leakage, dust, mud, and water
Suitable for extreme working environments
Long service life in heavy-duty track and drive systems
The YNF12898 64-78-25 Durocone Seal is a heavy-duty floating oil seal designed for excavators, bulldozers, and mining machinery operating in extreme environments. Also known as a Duo Cone Seal, it consists of two precision-lapped metal rings and elastomer toric rings that form a robust, self-aligning sealing system.
This seal is widely used in track rollers, carrier rollers, idlers, and final drives, where high load, abrasive contaminants, and continuous impact are present. Manufactured with hardened alloy steel rings and high-quality elastomer components, it delivers outstanding wear resistance, oil retention, and contamination exclusion.
Trusted by global aftermarket distributors and professional repair workshops, the YNF12898 floating oil seal is a reliable replacement solution that significantly extends component life and reduces downtime in construction and mining equipment.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF12898 |
| Product Type | Durocone Seal / Duo Cone Seal / Floating Oil Seal |
| Size | 64 × 78 × 25 mm |
| Material (Rings) | Hardened alloy steel |
| Material (Elastomer) | Oil-resistant rubber |
| Function | Oil sealing, contamination exclusion |
| Application | Track rollers, idlers, final drives |
| Machine Type | Excavators, bulldozers, mining machinery |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Set |
| Shipping Options | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application Area | Description |
|---|---|
| Track Rollers | Prevents oil leakage and ingress of mud and sand |
| Carrier Rollers & Idlers | Ensures long-lasting sealing under impact load |
| Final Drive Assemblies | Maintains lubrication in high-torque drive systems |
| Mining & Construction Gear | Designed for harsh, abrasive environments |
| Aftermarket Spare Parts | Ideal for distributors and repair workshops |
Related Products:
Duo Cone / Floating Oil Seals
Excavator Track Roller Seals
Final Drive Seal Kits
Idler & Carrier Roller Seals
Undercarriage Spare Parts
FAQs:
Q: What is a duocone seal used for?
A: Track rollers, idlers, carrier rollers, and final drives in heavy equipment.
Q: What environments is it suitable for?
A: Muddy, dusty, high-load, and high-impact working conditions.
Q: Is it sold as a set?
A: Yes, duocone seals are supplied as matched sets.
Q: MOQ?
A: 1 set.
The YNF12898 64-78-25 Durocone Seal is engineered for extreme-duty track and final drive applications. With hardened metal sealing rings, excellent wear resistance, and superior contamination protection, it ensures long service life even in harsh construction and mining environments. YNF Machinery offers stable quality, competitive pricing, and worldwide shipping—making this floating oil seal a trusted choice for heavy equipment maintenance. Contact us today for your best quotation.
