O-Ring 98.02x3.53 mm NBR

Applications

The O-Ring 98.02x3.53 mm NBR 70 Shore is a high-quality rubber sealing component engineered for demanding industrial applications. With an inner diameter of 98.02 mm and a cross-section of 3.53 mm, this rubber gasket is suited for both static and dynamic sealing in hydraulic systems, pneumatic equipment, pumps, valves, gearboxes, engine housings and industrial automation machines. Its NBR (nitrile butadiene rubber) composition at a hardness of 70 Shore A makes it especially suitable where oil resistance, high durability and technical sealing performance are required. The size and specification respond to search demand for large-format O-rings, “industrial sealing ring NBR”, “rubber seal 70 Shore”, and “O-Ring 98 mm”.

Advantages

• Precise size specification (98.02x3.53 mm) ensures consistent fit and predictable performance in grooves and assemblies engineered for high-quality seals.

• Premium NBR material at 70 Shore A hardness offers excellent resistance to mineral oils, greases and hydraulic fluids—a reliable choice for fluid-power and industrial applications.

• Compact cross-section in a large-diameter format supports effective sealing without excessive bulk, while maintaining high structural integrity and responsiveness.

• Versatile for both static and moderately dynamic sealing—ideal for OEMs, maintenance departments and procurement teams needing standardized rubber seals.

• Optimized for B2B procurement of technical sealing rings, providing stock-friendly sizes and aligning with keywords like “industrial seal”, “technical seal ring”, “uszczelnienie techniczne”, “rubber gasket NBR”.

Technical Data

• Material: Nitrile Butadiene Rubber (NBR)

• Hardness: 70 Shore A

• Inner Diameter (ID): 98.02 mm

• Cross-Section (CS): 3.53 mm

• Suitable for: Static or slowly moving sealing interfaces in hydraulic/pneumatic assemblies

• Operating Temperature Range: approx. -25 °C to +100 °C (NBR standard)

• Typical Media Compatibility: Mineral oil-based oils, greases, general hydraulic fluids

• Keywords integrated for SEO: “O-Ring 98.02x3.53”, “rubber seal NBR 70 Shore”, “industrial sealing ring 98 mm”, “technical sealing O-Ring NBR”.

FAQ

Q1: What does the dimension “98.02x3.53 mm” signify?
A1: It specifies an inner diameter (ID) of 98.02 mm and a cross-section thickness of 3.53 mm, suitable for standardized O-Ring grooves in industrial equipment.

Q2: Why choose an NBR material with 70 Shore hardness?
A2: NBR at 70 Shore A offers a strong balance of flexibility and resilience, enabling high resistance to oils and greases, and good general mechanical performance in sealing applications.

Q3: Can this O-Ring be used in dynamic or rotary sealing environments?
A3: Yes — while primarily designed for static or slow-motion sealing, it is applicable in lightly dynamic applications. For high-speed or heavy rotary motion, specialized rotary oil seals may be preferred.

Q4: What industries commonly specify this size and material?
A4: Commonly used in hydraulics, pneumatics, pump assemblies, industrial automation, gearboxes and engine housings—especially where standardized rubber seals with known performance are required.

Q5: What are the limitations of NBR for this O-Ring?
A5: Although NBR is excellent for oil-based fluids, it is less suited for continuous high-temperatures above ~120 °C, strong aromatic solvents or heavy ozone/UV exposure. In such environments, consider alternatives like FKM/Viton.