O-Ring 265x12 mm NBR

Applications

The O-Ring 265x12 mm NBR is a large-format industrial sealing ring designed for demanding hydraulic and pneumatic systems. Manufactured from nitrile rubber (NBR), the gasket is suitable for static sealing applications such as large flanges, machine housings, industrial plant installations and oil-based fluid systems. Its 265 mm inner diameter and 12 mm cross section enable reliable sealing in heavy-duty equipment, where mechanical robustness and chemical compatibility with petroleum-based media are required. Use cases include fluid power systems, large pumps, compressors, industrial gearboxes and heavy plant infrastructure.

Advantages

• High oil and fuel resistance: NBR material offers excellent resistance to mineral oils, lubricants and common hydraulic fluids, making this O-Ring ideal for industrial sealing rings exposed to aggressive media.

• Large dimension profile: With a 265 mm ID and 12 mm cross-section, the sealing ring handles wide gland designs and high-volume flow connections, offering durability and stability in heavy applications.

• Industrial sealing compatibility: This rubber gasket supports both static and moderate dynamic sealing (e.g., slow-moving pistons or flanges) in hydraulic/pneumatic environments, enhancing machine uptime.

• Technical supply format: Designed for B2B procurement, the O-Ring suits OEM supply chains, maintenance operations and industrial spares with its size-ready configuration.

• Fast availability: Stocked at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) with 24 h dispatch capability, enabling quick replenishment of critical sealing inventories.

Technical Data

• Inside diameter (ID): 265 mm

• Cross-section (CS): 12 mm

• Material: Nitrile Butadiene Rubber (NBR)

• Colour: standard black rubber

• Typical working temperature range: approx. -30 °C to +90 °C (depends on fluid, pressure and dynamic load)

• Primary applications: industrial sealing ring, rubber gasket for hydraulics and pneumatics, oil-resistant seal
  📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
  🚚 24 h Delivery - fast order fulfillment

FAQ

Q1: What makes NBR suitable for a 265x12 mm O-Ring?
A1: NBR provides high resistance to oils, greases and fuel-based media. For a large dimension—265x12 mm—the material offers both resilience and sufficient cross-section to handle deformation stresses while maintaining seal integrity.

Q2: Can this O-Ring be used in dynamic applications?
A2: While the 265x12 mm size is primarily designed for static sealing (flanges, housings), it can be used in moderate dynamic applications (slow relative motion) provided the gland design and lubrication are correct. For high-speed or fully dynamic uses, check compatibility.

Q3: How do I choose the correct gland dimensions for this sealing ring?
A3: The gland should match the 265 mm ID and 12 mm CS profile. Ensure proper groove width, depth and clearance per standard guidelines. Measuring accurately and checking cross-section tolerances ensures optimal sealing.

Q4: What temperature and fluid conditions can this O-Ring handle?
A4: Typical working range is from approximately -30 °C up to +90 °C under standard conditions in contact with mineral oils and hydraulic fluids. Exceeding these conditions may require alternative elastomer or enhanced design.

Q5: How quickly can I get this product for industrial maintenance?
A5: The product is held in stock with dispatch from our warehouse in Lublin. Same-day or next-day shipping (24 h delivery) ensures minimal downtime for your maintenance or production needs.