• X-ring 21,9x2,62 AS568-118 Quad Ring NBR 70 black

X-ring 21,9x2,62 NBR 70

NBR X-rings are 4-lipped twin-action static seals with a cross-section shape that is almost square. The NBR oil-resistant X-rings achieve their sealing capabilities by being mounted and compressed inside an assembly axial or radial accommodation. The stress of the medium reinforces the sealing function under severe working circumstances.
NBR X-rings have good chemical strength to mineral oils and greases, Hydraulic oils H, HL, HLP, HFA, HFB, HFC to approx. 50 ° C and in water up to + 80 ° C
The NBR X-rings offer a good degree of stabilization as well for dynamic application, as the X-ring owing to its nearly square cross-section is not prone to swinging within the loop curling. NBR X-rings involve less radial pretensioning. Due to the reduced contact stresses, this results in less abrasion. A lubricant reservoir between the binding teeth can be developed because of the design of the NBR X-rings

Product features    

Attribute     Value    
Material NBR
Hardness 70
NBR X-ring Internal diameter (mm) 21.9
NBR X-Ring Cross section (mm) 2.62
Hardness (Sh A) (Sh A) 70
International size standard indication 118
Colour Black
Compound Standard grade nitrile compound with a medium percentage of acrylonitrile and good compression set values
Temperature range (ЎC) from -30 to 120

Applications

  • Industrial Sealing
  • Automotive Applications
  • Chemical Processing

FAQ

What materials are used in the X-ring?
The X-ring is made from NBR (Nitrile Butadiene Rubber) which provides excellent oil resistance.
What is the temperature range for the NBR X-ring?
The NBR X-ring can withstand temperatures up to approximately 50 °C for oils and up to +80 °C for water.
How does the X-ring improve sealing performance?
The X-ring's unique 4-lipped design and nearly square cross-section enhance sealing capabilities by reducing radial pretensioning and abrasion.
Expert Advice: For optimal performance, ensure proper installation to avoid twisting the X-ring, which can compromise its sealing effectiveness.

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X-ring 21,9x2,62 AS568-118 Quad Ring NBR 70 black

    Germany
  • Brand: Germany
  • Product Code: X-ring 21,9x2,62 NBR 70
  • Availability: On stock

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From: 9.00 € (Ref. price)

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Tags: X-ring, 21, 9x2, 62, AS568-118, Quad, Ring, NBR, 70, black