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

Mode of action for X-Rings

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.

Advantages for X-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).

X-Rings in dynamic applications

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.

Standards and approvals for X-Rings

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.

Download technical informationen

Catalogue O- und X-Rings

Technical informationen O- und X-Rings

Frequently asked questions

What materials are X-Rings made from?

Our X-Rings are made from different materials. These materials can be used in production:

Elastomers such as NBR, EPDM, FKM, VMQ
polyurethane

The production of our X-Rings can vary depending on the application.

Is it possible to have customised X-Rings manufactured by ttv?

We have been manufacturing seals and plain bearings for our customers since 1990. Thanks to our production facilities, we are able to cater to individual customer requirements and produce our X-rings as required for the respective application.

If you are unsure whether your idea is technically feasible, please do not hesitate to contact us. We will be happy to assist you personally.

Where are X-Rings used?

X-Rings ensure high stability in dynamic applications and can be used in various areas. These include, among others:

In hydraulic and pneumatic systems: Sealing pistons and rods
In motors and gearboxes: For sealing slowly rotating shafts
In pump systems
In compressors

Our customers come from a wide range of industries such as the automotive industry, aerospace technology, mechanical engineering, agriculture, chemicals and medical technology.

When should I use X-Rings?

X-Rings are particularly suitable for environments with:

High pressures
High temperatures
Dynamic movements

Markets

Whether agricultural machinery, construction machinery, forestry technology, drive technology, mechanical engineering, automotive or aerospace, we are ready for your challenges. With our engineering solutions, we manage to offer added value in all decisive product parameters through solutions developed specifically for customers and applications. Get to know our competence and best examples in the most diverse markets.