Polymers are very versatile and can be used in a wide variety of applications.
The use of high-performance materials in particular, makes applications possible that were recently reserved for metallic materials, where polymers could not be previously applied.

In addition to the choice of materials, the design appropriate to the polymer is also of crucial importance for the function and performance of a component. Even with seemingly simple components - such as sealing rings or thrust washers – the design details matter.

Here is an excerpt from our product portfolio. These components are mainly subjected to thermal, mechanical and/or tribological stress.

However, since GAPI Technische Produkte GmbH does not specialize in specific products, but rather in the use of high-performance materials, we are available to provide advice and support for your ideas and to help you implement them in series production.

Sealing rings for oil rotary joints

Due to the high loads on the sealing rings or rectangular rings used in oil rotary joints, the use of high-performance polymers – such as Torlon® (PAI) or PEEK – have become more established. These materials can withstand higher pressures, speeds and temperatures, even over long periods of time.

Continuous optimization minimizes friction losses, leakages, and abrasion.

Thrust washers, plain bearings

For many applications, the use of thrust washers or plain bearings made of high-performance plastics, is the best choice. The better sliding and emergency running properties – even in unlubricated areas – are often superior to those of coated metallic materials.

Since the entire component is made of one material, the properties are ever present, even with abrasion. If the metallic coating is damaged, on the other hand, the properties change drastically and the system is thrown out of balance.

Self-grinding seals (abradable seals)

To improve the efficiency of turbochargers, efforts are made to keep the gap between the turbine and/or compressor wheel, and their housing, as small as possible. However, contact must be avoided.

By using inserts made of a high-performance polymer, the gap can be reduced to virtually zero, allowing the wheel and housing to adapt to each other.

After the run-in phase, the highest possible efficiency is then achieved.

Self-adjusting thrust pieces

Pressure pads made of polymer, placed within steering systems are well-established. The system we have designed solves the problem of abrasion caused by the necessary backlash in housings. They sit backlash-free inside the housing, and any existing abrasion is automatically compensated for, as well as improving noise reduction.