X-Rings For high levels of stability

Design	Material	Hardness (Shore A)	Color	Temperature (°C)/ Temporarily
X-Ring	NBR	70	black	-30 to +120
X-Ring	HNBR	70	black	-30 to +130/+150
X-Ring	FKM	70	brown	-20 to +200
X-Ring	EPDM	70	black	-40 to +110/+130
X-Ring	VMQ	70	red	-50 to +200

Profile

Design

Material

Hardness (Shore A)

Color

Temperature (°C)/ Temporarily

X-Ring

NBR

black

-30 to +120

X-Ring

HNBR

black

-30 to +130/+150

X-Ring

FKM

brown

-20 to +200

X-Ring

EPDM

black

-40 to +110/+130

X-Ring

VMQ

red

-50 to +200

The X-Ring is symmetrically shaped. It can adapt to every situation and withstand stress in any direction (radial, axial). The grouting increases dependent on the pressure. At high pressure should use Backup-Rings.

The advantage of X-rings is no risk of torsion and a low coefficient of friction, which is achieved by:

slippery materials
low preload
grease reserve between the lips

A better sealing of the X-rings against each other is mainly achieved by a double contact. Due to its geometry, the X-ring can be used in dynamic applications with rotating movements (1m / s).

The main advantage of the X-Ring is its high stability in dynamic applications where O-Rings provide a low performance.

X-Rings have four lips, which result in greater sealing surface. The four-lip seal was developed to achieve an improved lubrication of the seal and to avoid a rolling of the seal or spiral errors.

In contrast to O-Rings, which can roll in the groove and can cause a rotation, X-Rings will slide easily on. Also in regards to spiral errors X-Rings are much more resistant.

As it is the case with O-Rings, most X-Rings are produced in accordance for American Produced standards with inch sizes and AS numbers.

The dimensions of the X-Ring in accordance with the American standard AS568 and the associated O-Ring numbers. Compared to the grooves for O-Rings the standard grooves for X-Rings are deeper. For groove dimensions for X-Rings, there is a greater scope available, since X-Rings needs less pressure and can compensate for this. That means less friction and therefore less wear of the seal.

Catalogue O- und X-Rings

Technical informationen O- und X-Rings

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