Description
Technical Parameters
Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of high strength hnbr rubber washer in China. If you're going to buy high strength hnbr rubber washer made in China, welcome to get more information from our factory. We also accept customized orders.
High-Strength HNBR Rubber Washer
Product Characteristics
|
Material |
HNBR |
| Heat & Oil Combination | Retains NBR-level resistance to petroleum oils, fuels, and hydraulic fluids while extending continuous service temperature to 165°C - a unique balance unmatched by standard nitrile |
| High Mechanical Strength | Tensile strength up to 30 MPa with excellent tear and abrasion resistance, suited for load-bearing flange gaskets and high-pressure bolted joints |
| Ozone & Weathering Durability | Saturated polymer backbone eliminates ozone cracking - survives long-term under-hood and outdoor exposure without hardening or surface degradation |
| Dynamic Fatigue Endurance | Outstanding flex-life and resistance to repeated compression cycling, ideal for engine components, pumps, and belt-driven equipment under continuous operation |
| Refrigerant Compatibility | Excellent stability with HFC refrigerants (R134a, R410A) and POE/PAG lubricants, making it the standard for automotive AC and industrial refrigeration flanges |
| Low-Temperature Flexibility | Maintains resilience down to −40°C in standard grades, with low-temperature grades extending cold-climate performance further |
| Compression Set Control | Minimal permanent deformation after prolonged heat aging and bolted compression, preserving sealing force over extended service intervals |
| Customization Flexibility | Inner diameter, outer diameter, thickness (0.5–20 mm), and hardness (20–90 Shore A) tailored to specific hygienic, appliance, and industrial equipment requirements |
| 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 High-Strength HNBR Rubber Washer is engineered for severe-service applications where standard NBR gaskets reach their thermal and mechanical limits:
- The Unique Heat-and-Oil Balance - Hydrogenation raises the upper continuous service temperature to 165°C while preserving the excellent oil and fuel resistance that nitrile is known for - giving engineers a single gasket material for hot, oily engine and hydraulic environments where NBR hardens and FKM is cost-prohibitive.
- Heavy-Duty Strength for High-Pressure Joints - Tensile strength up to 30 MPa and superior tear resistance allow these washers to serve as load-bearing seals in high-pressure hydraulic flanges, engine bolted joints, and oilfield connections without extruding or splitting under clamp load.
- Ozone-Immune Longevity in Harsh Environments - The saturated polymer chain resists ozone and UV attack without external coatings, eliminating the surface cracking that shortens NBR gasket life in under-hood locations, outdoor oilfield equipment, and exposed refrigeration piping.
- Extended Dynamic Life Under Cyclic Stress - Exceptional flex-fatigue resistance ensures reliable sealing through millions of compression-release cycles in engine vibration, pump pulsation, and thermal expansion - maintaining gasket pressure long after conventional rubbers develop fatigue cracks.
- Refrigerant-System Ready Out of the Box - Fully compatible with modern HFC refrigerants and synthetic lubricants, these washers are the established standard for automotive AC compressor flanges, commercial chiller connections, and heat-pump piping without material modification.
- Precision OEM Tuning for Exact Requirements - Adjustable acrylonitrile content, hardness, and low-temperature modifiers allow engineers to balance oil resistance, cold flexibility, and cost for each specific powertrain, oilfield, or refrigeration application.
Common Applications
- Automotive Powertrain - Timing cover gaskets, oil pan washers, transmission housing seals, EGR valve gaskets, and turbocharger oil-line connections.
- Automotive Air Conditioning - Compressor manifold gaskets, AC line fitting washers, condenser flange seals, and refrigerant-handling connection gaskets.
- Oil & Gas Downhole - Wellhead flange gaskets, downhole tool seals, artificial-lift equipment washers, and high-pressure oilfield piping connections.
- Industrial Hydraulics - High-pressure cylinder end-cap gaskets, valve-manifold seals, hydraulic pump housing washers, and above-120°C hydraulic system flanges.
- Commercial Refrigeration & HVAC - Compressor housing gaskets, chiller flange seals, heat-pump connection washers, and refrigerant-line fitting gaskets.
- Power Transmission & Heavy Equipment - Gearbox cover gaskets, construction equipment hydraulic seals, mining machinery washers, and belt-drive tensioner gaskets.
Quality Assurance
- Every lot undergoes thickness measurement, dimensional inspection, hardness testing, tensile verification, and compression-set analysis before shipment.
- Full material traceability from raw compound to finished washer, with batch certificates available on request.
- RoHS, REACH, and automotive-grade compliance documentation supplied for relevant formulations.
- Statistical process control ensures consistent thickness and dimensional accuracy from prototype to volume production.
Company Information
Hot Tags: high strength hnbr rubber washer, china, manufacturers, suppliers, factory, customized, made in China, AEM Rubber Molded Products, Durable Rubber Push Fit Feet, ECO Rubber Molded Products, IIR Butyl Rubber Molded Products, Natural Rubber Leg Tip For Sofa, Neoprene Rubber Molded Products
