The Freudenberg-NOK OR 89.30 is a high-performance O-ring made from NBR (Nitrile Butadiene Rubber), measuring 5.70 inches in diameter. This O-ring is designed for optimal sealing capabilities in various applications, providing excellent resistance to oils, fuels, and other chemicals. Its robust construction ensures durability and reliability under pressure, making it suitable for automotive, industrial, and hydraulic systems. The O-ring meets industry standards for quality and performance, ensuring compatibility with a wide range of fittings and connections.
Description
DICHTOMATIK O-Ring, 89.3 mm Inside Dia, Cross Section: 5.7 mm, Circular Torus Cross Section, 90 Shore A Durometer, 40 to 120 deg F, Nitrile Rubber, Black
Features:
- NBR is a very commonly used material for O-rings because of its good mechanical properties, its resistance to lubricants and greases and its relatively low cost
- The physical and chemical resistance properties of NBR materials are determined by the acrylonitrile (ACN) content of the base polymer which can vary between 18 and 50%
- Low ACN content ensures good flexibility at low temperatures, but offers limited resistance to oils and fuels
- As the ACN content increases, the low temperature flexibility reduces and the resistance to oils and fuels improves
- Physical and chemical resistance properties of NBR materials are also affected by the cure system of the polymer
- Peroxide cured materials have improved physical properties, chemical resistance and thermal properties as compared to sulfur-donor-cured materials
- Standard grades of NBR are typically resistant to mineral oil-based lubricants and greases, many grades of hydraulic fluids, aliphatic hydrocarbons, silicone oils and greases and water to about 80 deg C
- NBR is generally not resistant to aromatic and chlorinated hydrocarbons, fuels with a high aromatic content, polar solvents, glycol based brake fluids and non-flammable hydraulic fluids (HFD)
- NBR also has low resistance to ozone, weathering and aging, but in many applications this has no negative effect
Applications:
Hydraulics, Pneumatics, Vacuum Applications, Fittings Industry, Automotive Industry and Plant and Mechanical Engineering
Standards/Approval:
- ASTM D1418
- AS 568B
- BS 1806
- JIS 2401
- ISD Certified
- NFPA Listed
- PTDA Certified
