NBR O-Ring 28.3 x 1.78 mm

NBR O-Ring 28.3 x 1.78 mm (70 ShA) - Pack of 100 Sealing Rings

Presenting the NBR O-Ring 28.3 x 1.78 mm (70 Shore A) — a high-quality nitrile rubber sealing ring, offered in a convenient pack of 100. Engineered for reliable performance in hydraulic, pneumatic, and general industrial applications, this O-ring combines precise metric dimensions with NBR’s renowned oil and wear resistance.

Specifications

• Inner Diameter (ID): 28.3 mm

• Cross-Section (CS): 1.78 mm (metric DIN 3771/ISO 3601-1)

• Material: Nitrile (NBR), 70 Shore A — offers excellent resistance to oils, greases, fuels, hydraulic fluids, with operational temperatures from -30 °C to +100 °C

Benefits

• Exceptional durability in oil- and grease-rich environments

• Consistent sealing performance thanks to tight manufacturing tolerances

• Cost-effective bulk packaging (100 pcs) ideal for production and maintenance teams

• Versatile application across fluid power, automotive, and industrial settings

Applications
Ideal for sealing in hydraulic cylinders, pneumatic valves, automotive systems, pumps, compressors, and various general machinery requiring a compact and reliable O-ring.

FAQ

1. Why use NBR 70 ShA for O-rings?
   Provides a balance of flexibility and resilience, excellent resistance to oils and chemicals, ideal for dynamic sealing conditions.

2. Are 28.3 x 1.78 mm O-rings common?
   Yes — widely recognized metric size (DIN 3771), used across diverse industries for precise sealing.

3. What does the pack of 100 offer?
   Bulk purchasing reduces unit cost, supports continuous production or service work, and simplifies inventory management.

4. Where is this O-ring most commonly used?
   In hydraulic and pneumatic systems, automotive assemblies, industrial machinery — wherever small diameter, reliable sealing is needed.

5. How fast is delivery?
   We provide 24-hour shipping from our warehouse in Lublin for quick fulfillment.