D-ring 42x52x5 NBR75 DN40

Hardness [ShA]
75
Material
NBR
Temperature range [ºC]
-30
to
100
SKU: B3040-0 Category:
Featured properties:
High resistance to oils, petrol and other petroleum products and greases, good resistance to heat and chemicals

Product: D-ring

D-rings are alternative rings for O-rings and have the same sealing characteristics as an O-ring. Different from an O-ring, a D-ring has a flat surface that ensures better stability. A D-ring can fit in grooves that are for O-rings and fills in the gap when squeezed. Our selection of D-rings comply with highly recognized DIN 11851 standard from Deutsches Institut für Normung (DIN).

Material: NBR

NBR has excellent oil resistance thanks to the polar nitrile functionalities along the polymer chain. NBR is usually preferred for applications involving exposure to oil, fat, grease, and fuel due to its excellent resistance to non-polar fluid as well as to wear. The service temperature range of NBR is typically between -30 to 90ºC.

Resistances

Abrasion

3

Fire

1

Oil and fuel

3-4

Ozone

1-2

Oxidations

2-3

Water

3-4
Resistance Grades
5
Excellent
4
Very good
3
Good
2
Fair
1
Bad
Technical data sheets

Dimensions

Inner diameter (ID)

42
mm

Outer diameter (OD)

52
mm

Height (h)

5.0
mm

DN

40

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Sigma specializes in the manufacturing and subcontracting of polymer solutions in rubber, silicone, and polyurethane, as well as bonding of these materials to metals and plastics. At Sigma, we are a team of dedicated experts who love turning ideas into solutions in polymer innovation with a strong focus on our customers.
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