Description
Technical Parameters
Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of nbr rubber washer for oil-resistant industrial sealing in China. If you're going to buy nbr rubber washer for oil-resistant industrial sealing made in China, welcome to get more information from our factory. We also accept customized orders.
NBR Rubber Washer for Oil-Resistant Industrial Sealing
Product Characteristics
|
Material |
NBR |
| Size and Shape | OEM |
| Working Temperature | -30°C ~ +120°C |
| Oil & Fuel Resistance | Excellent stability against petroleum-based oils, hydraulic fluids, greases, gasoline, and diesel - maintains sealing force without swelling or hardening |
| Flat-Sealing Performance | Controlled thickness tolerance and parallel surfaces ensure even compression across the full gasket face, eliminating leak paths in flange and bolted joints |
| Mechanical Strength | High tensile and tear resistance handles bolt-load stress and assembly compression without cracking or extruding under pressure |
| Compression Recovery | Low compression set after prolonged bolted compression and thermal cycling - retains sealing force over extended service intervals |
| Abrasion Resistance | Withstands friction during installation, vibration-induced wear, and repeated assembly-disassembly cycles |
| Lead Time | 1-3 weeks |
| Payment Term | L/C, T/T, WEST UNION, PAYPAL, ESCROW |
| Hardness | 20-90 Shore |
| Quality certification | RoHS, REACH, FDA (food-grade grades), etc. |
Product Introduction
Key Features
- The NBR Rubber Washer for Oil-Resistant Industrial Sealing delivers dependable flat-gasket performance where oil, fuel, and hydraulic fluid contact is a daily operating condition:
- Proven Oil-Environment Sealing - Nitrile's acrylonitrile content provides inherent resistance to petroleum oils, hydraulic fluids, and fuels, making these washers the standard choice for engine, transmission, and hydraulic assemblies.
- Consistent Flat-Face Compression - Uniform thickness and smooth, parallel surfaces distribute bolt load evenly across the entire sealing area, preventing localized over-compression and ensuring zero-leak performance.
- Bolt-Load Durability - High mechanical strength and tear resistance allow these washers to withstand the clamping force of bolted joints without extruding, cracking, or losing dimensional stability.
- Long Service Under Cyclic Stress - Low compression set and good resilience maintain sealing pressure through thermal expansion cycles, vibration, and repeated pressure fluctuations in hydraulic and pneumatic systems.
- Cost-Effective Reliability - NBR delivers oil-resistant sealing performance at a competitive material cost, making it the go-to choice for high-volume automotive and industrial applications.
- Made-to-Print Precision - Custom ID, OD, thickness, and hardness ensure an exact fit for non-standard flanges, specialty fittings, and OEM equipment.
Common Applications
- Automotive Engine & Transmission - Oil pan gaskets, valve-cover washers, transmission housing seals, and fuel-line fitting washers.
- Hydraulic Systems - Cylinder end-cap gaskets, valve-manifold seals, hose-fitting washers, and hydraulic reservoir cover gaskets.
- Pneumatic Equipment - Compressor head gaskets, air-line fitting washers, and pneumatic cylinder body seals.
- Industrial Machinery - Gearbox cover gaskets, pump housing seals, lubrication-system fittings, and bolted-joint washers in heavy equipment.
- Fuel Handling - Fuel-pump gaskets, fuel-filter housing seals, and diesel-generator fitting washers.
- Plumbing & Heating (Non-Potable) - Oil-fired boiler gaskets, heating-oil line fittings, and industrial water-treatment flange seals where oil resistance is required.
Quality Assurance
- Every lot undergoes thickness measurement, dimensional inspection, hardness testing, and compression-set verification before shipment.
- Full material traceability from raw compound to finished washer, with batch certificates available on request.
- RoHS and REACH compliance documentation supplied for every production batch.
- Statistical process control ensures consistent thickness and dimensional accuracy from prototype to volume production.
Company Information
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