Rolled dry sliding bushing POM/Aramid
Made of polyacetale, with performance-enhancing additional layers.

We offer rolled dry sliding bushings POM in five different designs, which enable higher loads and sliding properties with additional layers. With the types GETRO-2Y, GETRO-3NY, GETRO-2X, GETRO-2S and GETRO-PK of rolled dry sliding bushings POM, we ensure a performance-enhancing solution for every application.

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Description Rolled dry sliding bushings POM
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Overview

Design	PV-limit (lubricated + dry)	resilience	Temperature Range	sliding speed limit	friction coefficient
GETRO-2Y (TX) - ROHS (POM)	22 N/mm² × m/s	70 N/mm²	-40°C to +130°C	2.5 m/s	0.05 - 0.25
GETRO-3NY (POM)	30 N/mm² × m/s	80 N/mm²	-80°C to +160°C	2.5 m/s	0.05 - 0.20
GETRO-2X (POM)	22 N/mm² × m/s	70 N/mm²	-40°C to +130°C	2.5 m/s	0.05 - 0.25
GETRO-2S - ROHS (POM)	22 N/mm² × m/s	70 N/mm²	-40°C to +130°C	5 m/s	0.04 - 0.20
GETRO-PK (POM)	Oil: 40 N/mm² × m/s dry: 3.0 N/mm2 × m/s	100 N/mm²	-190°C to +280°C	2.5 m/s	0.04 - 0.20
GETRO-BF (Aramid)	3.6 N/mm² × m/s	140 N/mm²	-195°C to +280°C	5 m/s	0.04 - 0.20

Description Rolled dry sliding bushings POM/Aramid

Rolled dry sliding bushingGETRO-2Y (TX) – ROHS (POM)

The GETRO-2Y sliding bushings are lead-free and constitute an improvement on the GETRO-2X bushings. They are used in sectors where lead must not be used, such as in textile machinery and vehicle steering systems, medium-speed applications or applications with medium loads and medium levels of grease lubrication.

Rolled dry sliding bushing GETRO-3NY (POM)

With immediate effect, we offer the developed sliding bushing material ttv-3Y (TX) as an improvement of our well-known POM material. A special nylon layer, sintered on a steel or bronze band is characterized by the following advantages towards the characteristics of the POM material:
wear-resistant, heat-resistant (no problem to use until max. 160 C°), extended lifetime.

Rolled dry sliding bushing TTV-2X (POM)

The GETRO-2X sliding bushings are based on a 3-layer composite: The composite comprises a steel substrate, a sintered bronze intermediate layer and a modified POM surface sliding layer.

These bushings are particularly suited to applications with low speeds and heavy loads. The GETRO-2X sliding bushings are generally used in the automotive chassis sector, in forging, metallurgical and mining machinery and in power plants and rolling mills, among other areas.

Rolled dry sliding bushing GETRO-2S - ROHS (POM)

The GETRO-2S sliding bearings can be used with very little or even no lubricant under mixed friction, and are characterised by their low levels of friction, good corrosion protection and long service lives. These sliding bushings can be used with oscillating movements under severe environmental impacts, such as corrosion. The applications for these bushings are winches and bulldozers but also printing and dyeing machinery in the textile industry.

Rolled dry plain bearings GETRO-PK

ttv-PK is an advanced type of rolled dry plain bearing. The innovative plain bearing, which consists of sheet steel, a copper powder coating and modified PEEK material, is highly polymeric, temperature-resistant, wear-resistant and corrosion-resistant. The advantage is that these rolled dry plain bearings exhibit better properties in water and with little oil.

The wear-resistant PEEK layer of the GETRO-PK rolled dry plain bearings is over 0.1 mm thick, which significantly extends their service life compared to other materials. These rolled dry plain bearings are widely used in high-quality shock absorbers, tanks, machine tools and rotating and lifting parts in military applications.

Rolled dry sliding bushing GETRO-BF (Aramid)

The GETRO-BF bearing use the PTFE fibres fabric and aramid fiber overlayed on metal backing. The fabric has very high load capacity and high acuracy. The bushing has superior performance under low speed and heavy friction condition. Widely used in heavy equipment like construction machinery, agriculture machinery.

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Technical information series 2

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Technical information

Frequently asked questions

What are rolled dry sliding bushings POM made of?

Rolled dry sliding bushings with a POM sliding layer are made up of several layers:

Steel or bronze strip as carrier
This layer ensures that the POM dry sliding bushing remains stable and retains its shape even under high loads.
Sintered bronze sinter layer
This porous layer sits directly on the carrier material. It dissipates heat quickly, bonds the metal to the sliding layer and stores lubricant, which is released as required.
Sliding layer made of modified polyacetal (POM)
The plastic surface made of POM forms the actual sliding surface. It has small pockets that absorb lubricant and release it again when required. This means that the POM dry sliding bushing runs reliably even with little or no lubrication and wears only slowly.

For which applications are POM dry sliding bushings particularly suitable?

Rolled dry sliding bushings POM are well suited if you are moving medium to heavy loads and the speeds are low to medium.

Typical areas of application are

Chassis technology and vehicle construction
POM dry sliding bushings are used in chassis, steering and suspension systems as they are impact-resistant and work reliably even in dirty and damp conditions.
Heavy machinery, mining and forging technology
POM dry sliding bushings are durable and low-maintenance even in heat, dust or moisture for heavy machinery in mining or forging technology, where high loads and frequent impact loads also act on the bearing points.
Textile machinery
Precision, low friction and quiet operation are required in the textile industry. POM sliding bushings offer consistent performance over long running times without the need for frequent relubrication.
Other areas of application for POM dry sliding bushings include agricultural machinery, conveyor technology and packaging systems.

Depending on the design, POM dry sliding bushings can be adapted to different environments:

Temperature-resistant generally from -40 °C to 160 °C, special variants resistant at -195 °C to +280 °C
Can be used lubricant-free or lubricant-supported
Available in various dimensions and wall thicknesses

What distinguishes the different GETRO types of POM dry sliding bushings?

Our 5 bearing designs differ in their load capacity, temperature resistance and material composition.

POM dry sliding bushing GETRO-2Y
It is well suited for applications with medium loads and speeds.

Suitable up to approx. 130 °C
Ideal for medium loads and speeds

POM dry sliding bushing GETRO-2X
GETRO-2X is designed for heavy loads at rather low speeds. This makes this bearing suitable for industrial applications with heavy machinery or systems.

High load-bearing capacity with slow movements
Temperature-resistant up to 130 °C
Suitable for mining, smelting or forging technology, for example

POM dry sliding bushing GETRO-3NY
The nylon sliding layer of the GETRO-3NY makes the bearing more resistant to abrasion and allows it to be used at temperatures of up to 160 °C. This makes it a good choice if the bearing position becomes particularly hot or is subject to constant stress, e.g. in packaging or production systems with high cycle rates.

Runs reliably at high temperatures and friction
Wears out more slowly thanks to the nylon layer
Particularly suitable for dynamic, heat-intensive processes

POM dry sliding bushing GETRO-2S
GETRO-2S was developed for applications with mixed friction and changing environmental conditions. It has a very low coefficient of friction and a long service life. Its structure provides good protection against corrosion and therefore also proves its worth in harsh environments.

For temperatures from -40 °C to +130 °C
Low-friction and corrosion-protected
Ideal for oscillating movements under difficult conditions (e.g. winches, dyeing machines)

POM dry sliding bushing GETRO-BF
GETRO-BF is the most robust variant of our ttv series. The combination of PTFE and aramid fibres makes this POM dry sliding bushing particularly strong and precise, even when moving very slowly. It works reliably under extreme temperatures and is therefore very suitable for tough applications.

Withstands loads of up to 140 N/mm²
Works reliably from -195 °C to +280 °C
Particularly suitable for construction and agricultural machinery as well as heavy industry

Do rolled dry sliding bushings POM need lubrication?

Rolled dry sliding bushings with POM sliding layer are specially developed to function reliably even without regular lubrication.

The sliding surface of POM dry sliding bushings is made of modified polyacetal (POM) with self-lubricating properties. Integrated lubricant pockets in the surface absorb grease or oil and release it again as required, e.g. when running dry or under load. However, depending on the application and bearing type, supportive lubrication can increase the service life of the POM bearing or be useful in special cases.

That means:

Longer maintenance intervals
Less lubricant consumption
No downtimes due to relubrication.

These are major advantages, especially in systems that are difficult to access or automated.

Tip: GETRO-2S were even developed specifically for use with mixed friction. They therefore run reliably even if only a very small amount of lubricant is present, e.g. due to ambient conditions, irregular maintenance or an intermittent lubricating film.

How does the coefficient of friction affect the performance of my machine?

The coefficient of friction for rolled POM dry sliding bushings is typically between 0.05 and 0.25, depending on the type.

The lower the coefficient of friction, the easier the bearing runs - and this in turn has an effect on the performance of your machine.

A low coefficient of friction means

Less energy loss.
Friction converts kinetic energy into heat. Low friction ensures that more energy flows into the actual movement - making your machine more efficient.
Less heat generation.
Less friction = less heat. A low friction value of the POM dry sliding bushing therefore reduces the thermal load on components and prevents premature material wear.
Longer service life.
Dry sliding bushings with low friction run more smoothly and evenly, extending the service life of the bearing and its neighbouring components.

What advantages do rolled dry sliding bushings POM offer over other bearings?

They are low-maintenance, robust and resist corrosion and wear very well.

Low-maintenance even when running dry
The POM surface is easy to slide and has integrated lubrication pockets that release stored lubricant when required. Many types run reliably even when completely dry.
Robust design for high loads
Thanks to their multi-layer design, POM dry sliding bushings can withstand surface pressures of up to 80 N/mm². Some variants, such as the GETRO-BF, can even withstand up to 140 N/mm².
Wide temperature range
Most POM types cover a temperature range from -40 °C to +130 °C. Variants such as GETRO-3NY or GETRO-BF can even be used up to +160 °C and +280 °C respectively.
Corrosion-resistant and durable
POM dry sliding bushings withstand corrosive environmental influences, even with mixed friction or moisture.
Low friction and efficient
With very low friction coefficients between 0.00 and 0.25, POM sliding bushings minimise energy losses and heat generation. This protects neighbouring components, reduces wear and makes the entire system more energy-efficient.

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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.