Rotary Shaft Seal 65x85x10 DUO NBR - Dual-Lip Oil Seal
3 pcs.
€2.21
(net)
Price for: 1pcs.
The Rotary Shaft Seal 65x85x10 DUO NBR is a reliable, dual-lip solution engineered to maintain tight oil retention and resist contamination in demanding rotating shaft applications. Its NBR construction ensures compatibility with common lubricants, and the DUO design enhances durability.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h Delivery - fast and efficient order processing
Secure your supply of high-quality dual-lip shaft seals — order now for dependable sealing performance across industrial, automotive, and mechanical systems.
Applications & Typical Use Cases
The 65x85x10 DUO NBR rotary shaft seal (dual lip) is widely sought under search terms like “65x85x10 oil seal”, “DUO NBR shaft seal”, “dual lip rotary seal NBR”, and “65 85 10 NBR DUO oil seal.” This seal is optimized for applications where rotating shafts demand robust sealing against lubricant leakage and contaminant ingress. Typical installations include gearboxes, electric motors, pumps, industrial machinery, agricultural drives, and general rotating equipment.
In such settings, the dual-lip design ensures both retention of oil/grease and exclusion of dust or external pollutants, making this seal ideal for industrial applications, automotive drives, hydraulic systems, and motor assemblies.
Advantages & Material Features
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Dual-lip (DUO) configuration: The primary lip maintains tight contact with the shaft to retain lubrication, while the secondary lip acts as a dust or contaminant barrier.
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NBR elastomer (nitrile rubber): Offers strong resistance to oils, greases, and moderate hydraulic fluids; a commonly preferred material in oil seals.
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Consistent sealing pressure via garter spring (if included): compensates for lip wear and material aging.
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Temperature capability: Typically operates in a range from about -30 °C to +100 °C (depending on NBR formulation).
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Good mechanical stability: Retains shape over time under cyclical operating conditions.
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Low friction: Designed to minimize drag on rotating components, preserving efficiency.
While NBR is well-suited for oil-based media, it is less resistant to extreme temperatures, harsh chemicals, or aggressive solvents—such cases may require alternative elastomers (e.g. FKM).
Technical Specifications
| Parameter | Value / Characteristic |
|---|---|
| Inner Diameter (ID) | 65 mm |
| Outer Diameter (OD) | 85 mm |
| Width / Height | 10 mm |
| Seal Type | Rotary, Dual-Lip (DUO) |
| Lip Material | NBR (nitrile rubber) |
| Spring | Garter spring (if applicable) |
| Working Temperature | ~ -30 °C to +100 °C |
| Media Compatibility | Mineral oils, greases, mild hydraulic oil |
| Typical Applications | Gearboxes, pumps, motors, industrial machinery |
FAQ - Frequently Asked Questions
Q: What’s the difference between single-lip and dual-lip (“DUO”) oil seals?
A: A single-lip seal provides basic oil containment, while a dual-lip (DUO) design adds a secondary lip to block dust and contaminants, enhancing longevity and protection in harsher environments.
Q: Why choose NBR for this 65x85x10 seal?
A: NBR offers a strong balance of cost, oil resistance, and mechanical performance. It is ideal for many industrial and automotive lubricated systems.
Q: How to ensure proper installation and performance?
A: Lightly lubricate the sealing lips and shaft, align the seal squarely before pressing, avoid damaging the lips, and confirm a correct shaft finish (e.g. Ra 0.2-0.8 µm) and hardness.
Q: What happens if I exceed temperature or chemical limits?
A: Excessive heat can degrade NBR, causing hardening or cracking. Aggressive chemicals can swell or deteriorate the material—thus in such scenarios materials like FKM or PTFE may be preferred.
Q: What is the expected service life of this seal?
A: With proper installation and operating conditions (temperature, shaft alignment, lubrication), a DUO NBR seal can provide long-term service. Lifespan depends on operating environment, speed, and maintenance.
65X85X10 DUO
3 pcs.
Data sheet
- Diameter in. (mm)
- 65
- Diameter out. (mm)
- 85
- Height (mm)
- 10
- Mark
- GRN
The Rotary Shaft Seal 65x85x10 DUO NBR is a reliable, dual-lip solution engineered to maintain tight oil retention and resist contamination in demanding rotating shaft applications. Its NBR construction ensures compatibility with common lubricants, and the DUO design enhances durability.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h Delivery - fast and efficient order processing
Secure your supply of high-quality dual-lip shaft seals — order now for dependable sealing performance across industrial, automotive, and mechanical systems.