O-Ring 33.05x1.78 mm NBR

Applications

The O-Ring 33.05x1.78 mm NBR is designed for precise sealing in industrial environments requiring compact dimensions and high chemical compatibility. Manufactured from nitrile rubber (NBR), this sealing ring addresses the needs of hydraulic and pneumatic systems, instrumentation, machine components and service kits where oil, grease or fuel exposure is expected. With its inside diameter of 33.05 mm and cross-section of 1.78 mm, it fits tight groove designs and supports both static and light dynamic sealing duties in maintenance, OEM and repair settings.

Advantages

• High oil- and fuel-resistance: The NBR material provides rugged performance against mineral oils, lubricants and hydrocarbons, making this sealing ring suitable for many industrial media.

• Precise fit in compact dimensions: The 33.05 x 1.78 mm profile enables integration into standard or custom glands with minimal modification, reducing leakage risk and simplifying stock keeping.

• Industrial sealing versatility: Suitable for applications in hydraulic cylinders, pneumatic actuators, valves, instrumentation and machine assemblies—basically a reliable rubber gasket for wide-ranging industrial tasks.

• Optimised for B2B procurement: Provided in configurations suited for maintenance and service operations, enabling streamlined supply chain workflows and improved downtime management.

• Local stock & rapid dispatch: With availability during standard procurement cycles and 24 h shipping from our warehouse in Lublin (ul. Smoluchowskiego 1, building 4), you can count on fast fulfilment.

Technical Data

• Inner diameter (ID): 33.05 mm

• Cross-section (CS): 1.78 mm

• Material: Nitrile Butadiene Rubber (NBR)

• Colour: typical black elastomer

• Typical working temperature range: -30 °C to approx. +135 °C depending on media and duty cycle.

• Typical media compatibility: mineral oils, greases, fuels, air, water-based fluids in non-aggressive conditions.

• Primary use: industrial sealing ring, rubber gasket, static or light dynamic seal for hydraulic/pneumatic applications
  📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
  🚚 24 h Delivery - fast order fulfilment

FAQ

Q1: What does “33.05x1.78 mm” mean on the O-Ring?
A1: It indicates the inside diameter (33.05 mm) and the cross-section thickness (1.78 mm). Correct sizing ensures optimal sealing and minimal deformation.

Q2: Why is NBR chosen for this size of O-Ring?
A2: NBR offers excellent resistance to oils, lubricants and many industrial fluids, making it suited for applications in hydraulics and pneumatics. Its flexibility and durability in this dimension size make it a dependable choice for compact sealing requirements.

Q3: Can this O-Ring be used in dynamic sealing applications?
A3: Yes, in moderate dynamic conditions (e.g., slow piston movement, slight reciprocation) the 33.05x1.78 mm NBR ring will perform adequately. For high-speed or high-wear environments, consider specifying profile, groove design and lubrication accordingly.

Q4: What installation practices should be followed?
A4: Ensure the gland or groove dimension matches the 33.05x1.78 mm profile, clean the sealing surfaces thoroughly, avoid twisting the O-Ring during installation, and apply compatible lubricant if needed to reduce sliding friction and wear.

Q5: How quickly can I receive this product?
A5: The product is stocked at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and is eligible for next-day dispatch within standard order processing, supporting 24 h delivery for B2B clients.