Rolled dry sliding bushings (PTFE)
Made of PTFE, for temperature ranges from -195° C to +280° C

We offer rolled dry sliding bushings (PTFE) in various specifications to meet the requirements of the food or pharmaceutical industry.

Table of contents

Overview
Description Rolled dry sliding bushing (PTFE)
Download technical informations
FAQ
More Products
Markets

Shop
Your direct contact to us

Overview

Design	Resilience	Temperature Range	Sliding Speed limit	Friction coefficient	limit value (dry)	limit value (oil)

GETRO-1W - ROHS	140 N/mm²	-195°C to +280°C	5 m/s	0.03 - 0.18	4.3 N/mm² × m/s	50 N/mm² × m/s
GETRO-1T	140 N/mm²	-195°C to +280°C	10 m/s	0.03 - 0.18	4.3 N/mm² × m/s	60 N/mm² × m/s
GETRO-1D - ROHS	140 N/mm²	-195°C to +280°C	3 m/s	0.04 - 0.40	3.8 N/mm² × m/s	50 N/mm² × m/s
GETRO-1B (TU-B)	140 N/mm²	-195°C to +280°C	5 m/s	0.03 - 0.18	4.3 N/mm² × m/s	50 N/mm² × m/s
GETRO-1S (DI)- ROHS	140 N/mm²	-195°C to +280°C	2.5 m/s	0.04 - 0.20	3.6 N/mm² × m/s	50 N/mm² × m/s
GETRO-PK	100 N/mm²	-190°C to +280°C	2.5 m/s	0.05 - 0.20	3.0 N/mm² × m/s	40 N/mm² × m/s

Description Rolled dry sliding bushing (PTFE)

Rolled dry sliding bushing GETRO-1W-ROHS

The GETRO-1X bearings are encapsulated sliding bearings made of a three-layer composite produced from a steel strip, a sintered-on porous bronze layer and a surface sliding layer made of PTFE. This type of bushing has a low friction coefficient and protection against wear and corrosion, and can be used without oil. The low manufacturing costs and top-of-the-range technical foundations mean that these bushings are used in a variety of different kinds of sliding applications, such as in textile manufacturing machinery, hydraulic systems and automotive machinery as well as agricultural and forestry machinery. This type of bushing can also be used in the food and pharmaceutical industries as well as in various industrial sectors.

Rolled dry sliding bushing GETRO-1T

The GETRO-1T consists of a specially developed PTFE surface sliding layer and is particularly suited to applications with high PV ratings, such as transmission oil pumps.

This type of bearing is primarily used in hydraulic systems or for boundary lubrication, and in medium or high-pressure transmission oil pumps (P = 16 – 25 Mpa, V = 3,5 – 5 m/s). The friction coefficient and the wear and shock-resistant properties have undergone additional improvements. With hydrodynamic lubrication, the PV limit was reached at 120 N/mm² m/s. These sliding bushings are used in transmission pumps as well as in piston pumps and vane pumps.

Rolled dry sliding bushing GETRO-1D-ROHS

The 1D bearing is particularly suitable for linear or axial movements. This type of bushing is particularly wear-resistant and can retain lubricant well, even if it has a long service life. It also simultaneously protects the mating surfaces from wear and tear.

This type of bushing is generally used as a piston ring in shock absorbers for cars and motor cycles and for various hydraulic cylinders, hydraulic motors and pneumatic components.

Rolled dry sliding bushing GETRO-1B (TU-B)

The GETRO-1B bushings consist of a PTFE layer sintered onto a bronze strip. These bushings are corrosion-resistant and are suited to high-temperature applications that can be carried out without the use oil requiring long operating cycles.

This type of bearing is used radially or axially, particularly in the steel and cement industries. The GETRO-1B bearings can be used in panels as bridge bearings, as the thick inner surface sliding layer can withstand a load of up to 140 N/mm².

Rolled dry sliding bushing GETRO-1S (DI)-ROHS

GETRO-1S sliding bushings are oil-resistant, acid-resistant, alkali-resistant and salt-water-resistant.

Furthermore, the PTFE surface sliding layer is lead-free, meaning that this type of bushing can be used for applications in the food industry, for alkali-flow measuring devices, in pharmaceutical machinery, printing machinery, in chemical engineering and in the shipping industry.

Rolled dry sliding bushing GETRO-PK

TheGETRO-PK bearing is an advanced bearing. The benefit of this type of bushing lies in its improved properties when used in water or with small quantities of oil.

The PEEK layer is over 0.1 mm thick, meaning that this type of bushing has a longer service life than the GETRO-1X. These bushings are popular in high-quality shock absorbers as well as in rotary and lifting parts in military applications.

Download technical informations

Technical information series 1

Extract dimension list series 1

Product catalogue

Technical information

Frequently asked questions

What advantages do PTFE dry sliding bushings offer over conventional plain bearings at extreme temperatures?

PTFE rolled dry sliding bushings work reliably even at extreme temperatures from -195 °C to +280 °C: the polytetrafluoroethylene top layer is highly lubricious and the bearing is therefore not dependent on temperature-sensitive lubricants, unlike classic bronze bushings.

PTFE retains its friction properties even at extreme temperature peaks
PTFE rolled dry sliding bushings consist of a load-bearing bronze strip and a PTFE layer applied on top. This plastic retains its frictional properties even at very low temperatures, where conventional lubricants become brittle. Even at high temperatures of up to +280 °C, the structure of the sliding layer remains stable without becoming too soft or even burning out.
Classic bronze bushes need lubricants - PTFE does not
Regular lubrication is necessary for classic bronze bushes, as their sliding function is purely metallic. Under thermal stress, however, the grease can escape, evaporate or oxidise: The result is seizure damage, abrasion or total failure. Rolled dry sliding bushings (PTFE), on the other hand, run reliably even in dry operation.

Conclusion: PTFE sintered bearings can generally run dry. The PTFE layer (polytetrafluoroethylene) has very good sliding properties even without external lubrication. This is why rolled dry sliding bushings (PTFE) also function without any oil or grease in extreme environments.

The lubricant depots in GETRO-090 and -092 provide optional support and improve the lubricating effect under normal conditions. However, they are not absolutely necessary for the bearing to function.

What is the difference between GETRO-090 and GETRO-092 sintered bearings?

Both bearings are rolled dry sliding bushings made of CuSn8 bronze and have a self-lubricating PTFE sliding layer. They differ in the way in which additional lubricant is stored and released during operation.

GETRO-090 with lubrication grooves: for continuous distribution
The GETRO-090 rolled dry sliding bushing (PTFE) consists of a high-density bronze strip. There are either diamond-shaped or spherical lubrication grooves on the inner surface. These act as a grease reservoir and support the already highly lubricious PTFE layer.

Who is it suitable for?
GETRO-090 is ideal for applications with cyclical operation or where regular relubrication is required, e.g. in construction machinery, lifting vehicles or machines with intermittent lubrication.

GETRO-092 with lubrication holes: for easy filling during assembly
The design of the GETRO-092 is almost identical to that of the GETRO-090, but this bearing has evenly distributed lubrication holes instead of grooves. These are filled with grease during assembly. The bearing then releases the lubricant in a controlled manner via the PTFE sliding surface. The advantage: simple mounting and a very low-maintenance grease reservoir.

Who is it suitable for?
GETRO-092 is particularly suitable if it is difficult to reach the bearing point or if you want to avoid relubrication as far as possible, e.g. for conveyor systems, rollers, anchor winches or slow-running machines with medium loads.

The PTFE layer of the rolled dry sliding bushings
Regardless of the design, the PTFE layer ensures permanently low friction - even if the lubricant depot should fail (e.g. at extreme temperatures).

In which applications is GETRO-090 used?

GETRO-092 sintered bearings are particularly suitable where medium loads and low sliding speeds occur.

GETRO-090 dry sliding bushings (PTFE) are ideal where:

installation space is tight
the forces are high
extreme temperatures prevail.

What makes rolled GETRO PTFE dry sliding bushings special:

GETRO dry sliding bushings (PTFE) are rolled, not solid, thus saving space and weight. The PTFE layer reduces the coefficient of friction, the recessed lubrication grooves store grease or oil and also distribute it evenly during operation.

Typical areas of application for GETRO PTFE dry sliding bushings:

Construction machinery & lifting vehicles
GETRO-090 withstands high point loads on swivel arms, bearing axles or cylinder mounts.
Tractors, lorries & commercial vehicles
Wherever load changes, vibrations and long service lives come together, a PTFE-rolled dry sliding bushing scores highly thanks to its low friction and high wear resistance.
Machine tools & plant engineering
Compact design, high fitting accuracy, good sliding behaviour - ideal for the machine room.
Engine construction & oscillating movements
PTFE rolled dry sliding bushings are particularly suitable for bearing points that do not run continuously but oscillate or swing.
Temperature-critical applications
In industries that operate in extreme environments (e.g. food processing, refrigeration technology, industrial furnaces), GERO PTFE dry sliding bushings function reliably at temperatures from -195 °C to +280 °C without the need for oils and greases. The PTFE layer keeps friction low and protects against galling.

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.