Carbon as a Sliding Element

Carbon bushings, also called carbon bearings or carbon plain bearings, act as bearing and sliding elements thanks to their good sliding properties. Notable properties of carbon and graphite materials are chemical resistance, good sliding and dry-running properties, a low coefficient of friction and good thermal conductivity. In addition, these components are distinguished by unique thermal shock behavior, excellent dimensional stability and high fatigue strength.

Chemically resistant Dry running To customer specification
Carbon bushing / carbon bearing made of carbon graphite

Where Carbon Sleeves excel

Carbon Sleeves are used mainly where other materials are not possible due to high corrosion or where the temperature is outside the range permissible for lubricating oils. They are also used when the materials are surrounded by grease-dissolving agents or when liquids without a lubricating effect, such as water and petrol, are conveyed.

Main areas of application as bearing and sliding elements under dry running are dryers for gypsum or plasterboard panels, vane pumps and air compressors as well as the guide vane adjustment of turbo compressors. In wet running, carbon plain bearings are used mainly in industrial pumps, electroplating plants and washing systems, as well as in automotive, reactor and offshore technology. Further carbon and graphite parts to drawing can be found under Graphite Machining.

Technical Data

Material
A10K
Operating temperature
max. 500 °C
Circumferential speed
max. 150 m/s
Shaft diameter
20…100 mm

Frequently asked questions

What is a carbon bushing?

A carbon bushing (or carbon bearing) is a bearing or sliding element made of carbon and graphite materials. It is chemically resistant, self-lubricating and suitable for dry running.

What are carbon bushings used for?

As a bearing, bushing or sliding element wherever lubricating oil fails or is not permitted, for example at high temperatures, with aggressive media or in dry running.

Which material are carbon bushings made of?

Of carbon and graphite materials, on request with impregnation, and manufactured to customer specification.

What is the advantage over a metal bearing?

Carbon is self-lubricating, has a low coefficient of friction and is chemically resistant, so the bushing runs reliably even dry and at high temperatures.

A carbon sleeve made to measure?

Get in touch. We develop individual, tailor-made solutions to meet your requirements.