O-Ring 91.4 x 5.3 mm NBR

Applications

This O-Ring 91.4 x 5.3 mm manufactured in nitrile rubber (NBR) with a hardness of 70 ShA is engineered for critical industrial sealing tasks. It functions as a robust rubber gasket or static sealing ring in hydraulic cylinders, pneumatic actuators, valves and flanged connections. Thanks to its material and dimensioning it serves as a reliable industrial sealing component in OEM machinery, maintenance operations, and plant infrastructure. Frequent search terms such as “O-Ring 91.4x5.3”, “NBR 70 ShA O-Ring”, “industrial rubber seal 91.4 mm” are incorporated for maximum visibility.

Advantages

Selecting this O-Ring brings a number of benefits for B2B procurement and engineering teams:

• Accurate inner diameter 91.4 mm and cross-section thickness 5.3 mm ensure compatibility with metric groove standards and non-standard configurations.

• NBR (nitrile rubber) with 70 ShA hardness offers an optimal balance between elasticity and compressive strength, delivering high durability in industrial sealing applications.

• Excellent chemical resistance to mineral oils, greases, fuels and hydraulic fluids—making the seal suited for demanding hydraulic and pneumatic applications.

• Cost-effective solution with broad availability and rapid fulfilment: stocked at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) with 24h delivery turn-around.

• Suitable for static and low-dynamic sealing contexts where high reliability is required; it supports maintenance planning, reduces downtime risk and optimises total cost of ownership.

Technical Data

• Product type: O-Ring / rubber gasket / static sealing ring

• Size: Inner Diameter (ID) ~ 91.4 mm, Cross Section ~ 5.3 mm

• Material: NBR (nitrile rubber)

• Hardness: 70 Shore A

• Typical temperature range: approximately -30 °C to +100 °C under standard conditions - consult for higher or lower extremes.

• Primary uses: industrial sealing for hydraulics, pneumatics, flanges, covers, valves

• Color: Standard black for NBR material

• Availability: Warehouse & store: Lublin, ul. Smoluchowskiego 1, building 4. 24h delivery offered.

FAQ

Q1: Can this O-Ring be used in hydraulic oil circuits?
A1: Yes - the NBR material with 70 ShA hardness is widely used for rubber seals and O-rings in hydraulic oil environments. Its compatibility with mineral oils and greases makes it a fit for hydraulic fluid systems.

Q2: What is the operating temperature range of this O-Ring?
A2: In typical industrial conditions the O-Ring covers a range from around -30 °C up to approximately +100 °C. For more extreme temperatures or special fluids, please consult material option alternatives.

Q3: Is this O-Ring suitable for dynamic sealing (moving pistons)?
A3: While this O-ring is primarily optimized for static and semi-static sealing, it can be applied in moderate dynamic applications depending on speed, pressure and lubrication. Engineering verification is recommended.

Q4: How quickly can I receive this product?
A4: The product is stocked in our Lublin warehouse (ul. Smoluchowskiego 1, building 4) and qualifies for 24h delivery - supporting rapid procurement and maintenance workflows.

Q5: What if I require a different size or hardness?
A5: We support custom or alternate O-Ring solutions: please provide required dimensions, material (e.g., FKM, EPDM) and hardness, and we will propose a suitable industrial sealing ring for your application.