O-Ring NBR 100x3 mm

Applications

The O-Ring 100x3 NBR 70 ShA is a precision-engineered industrial sealing ring designed for bulk supply to B2B customers. Measuring 100 mm inner diameter with a 3 mm cross-section and made of nitrile butadiene rubber (NBR) with 70 ShA hardness, this rubber gasket delivers reliable performance in demanding environments. It is ideal for use as a static or dynamic seal in hydraulic cylinders, pneumatic systems, pumps, valves, gearboxes and other industrial machinery. The size and material make it well suited for applications where commercial packaging and cost-effective sealing rings are required, such as maintenance operations, machine rebuilds, LRU spares and high-volume supply chains.

Advantages

• High chemical and oil resistance: NBR in 70 ShA hardness offers excellent durability against mineral oils, lubricants, fuels and hydraulic fluids, making the ring well suited for industrial sealing of oils, greases and hydrocarbons.

• Balanced mechanical properties: The 70 ShA durometer provides a strong compromise between flexibility and stability, resulting in reliable sealing even under varying pressure or temperature conditions.

• Bulk format - 1 000 pieces: Supplied in a package of one thousand rings, the format reduces unit cost, simplifies inventory control and supports large-scale industrial procurement strategies.

• Versatile sealing ring for industrial use: Suitable for hydraulic and pneumatic applications as well as static sealing tasks, the O-Ring meets both general purpose and heavy-duty demands.

• Local warehouse & rapid fulfillment: Ready stock available at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) with 24 h delivery - ensuring minimal downtime for your operations.

Technical Data

• Shape: circular cross-section sealing ring (O-Ring)

• Internal diameter (ID): 100 mm

• Cross-section (CS): 3 mm

• Material: Nitrile Butadiene Rubber (NBR)

• Hardness: 70 Shore A

• Colour: black (standard NBR)

• Typical working temperature range: approx. -30 °C up to +120-135 °C depending on fluid and conditions.

• Packaging: 1 000 pcs per box (bulk format)

• Primary use: industrial sealing ring, rubber gasket, static and dynamic sealing in hydraulic/pneumatic equipment, machine tooling, automotive support units

• Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4 - with 24h delivery for rapid supply chain response

Installation note: Ensure the gland or groove dimensions match the 100x3 profile, clean all surfaces prior to installation. In dynamic applications consider using compatible lubricant to reduce wear and avoid extrusion.

FAQ

Q1: What distinguishes the NBR 70 ShA material in this sealing ring?
A1: NBR (nitrile rubber) with 70 ShA hardness provides an optimal balance between elasticity and structural strength. It is highly resistant to oils, greases and many hydrocarbon-based media, making it a trusted choice for industrial O-Rings in hydraulic or pneumatic systems.

Q2: Can this O-Ring be used for both static and dynamic sealing applications?
A2: Yes. With its size of 100x3 mm and NBR 70 ShA material, the O-Ring is suitable for static seals (where no movement occurs) and for moderate dynamic sealing (such as in pistons or valves). For high-speed or heavy oscillation applications, further material review is recommended.

Q3: What is the delivery time for this bulk pack and where is it shipped from?
A3: The product is held in stock at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and is available for 24 h dispatch, supporting fast replenishment of your industrial seal inventory.

Q4: What size format is the packaging and how does bulk packaging benefit industrial buyers?
A4: This O-Ring is supplied in a box of 1 000 pieces. Bulk packaging supports lower unit cost, simplified logistic handling and ensures adequate stock for maintenance teams and manufacturing line support.

Q5: What considerations should I take when selecting an O-Ring for oils and fuels?
A5: When dealing with oil-based media or fuels, material compatibility is critical. NBR 70 ShA is well suited for mineral oils, lubricants and fuels, but less resistant to ozone, UV or highly aggressive chemicals. Always verify operating temperature, fluid type and pressure parameters when specifying a sealing ring.