Wieland Caro GmbH

Wieland AFC – Anti-friction coating for reliable lubrication

Wieland AFC is an innovative solid-containing bonded coating that has been specially developed to reliably lubricate highly stressed machine elements and to minimise maintenance. Due to its excellent emergency running properties and optimised coefficient of friction under conditions of insufficient lubrication, it is an ideal solution for demanding applications where grease lubrication and initial greasing are required.

AFC is based on a robust polyamide-imide matrix enriched with the solid lubricants MoS₂ and graphite. This special combination not only promotes the running-in process, but also ensures, in conjunction with initial lubrication, a low-maintenance or even maintenance-free operation of the bearing system. Due to its excellent adhesion to metallic surfaces, the coating also provides effective corrosion protection and is highly resistant to oils, greases and solvents.

Wieland AFC is characterised by outstanding pressure and temperature resistance. The coating remains permanently stable over a wide temperature range from -40 °C to +250 °C and can even withstand temperatures of up to +400 °C for short periods. With a layer thickness of just 5–20 µm, it offers excellent performance without the need to modify the original design. This ensures reliable performance even under extreme conditions.

Technical highlights:

• Permanent temperature resistance:
• -40 °C to +250 °C (up to +400 °C for short periods)
• High surface pressure: up to 400 MPa
• Excellent wear protection due to permanent metallic separation of the sliding partners
• PFAS-free and therefore future-proof for use in the EU

Comparison with conventional wear layers:

Compared to conventional coatings, Wieland AFC offers significantly lower friction coefficients, more even lubricant distribution and exceptional resistance to mechanical loads. The metallic separation of the sliding partners also helps to further minimise wear and system friction. Depending on the application, this can lead to significant energy savings.
 

With Wieland AFC, you are choosing a future-oriented coating technology that reduces maintenance costs, extends the service life of your systems and, at the same time, meets the requirements of modern industrial applications.

For more information, please see our factsheet.

Wieland HPC - High Performance Coating for demanding applications

Wieland HPC is a highly abrasion resistant polymer coating specially developed for use under extreme conditions. With outstanding wear and friction properties, this innovative coating system offers particularly good performance at high temperatures.

The polymer layer of Wieland HPC plays a decisive role in the running-in phase by ensuring stable and long-lasting operation. By separating the metallic mating surfaces, friction in the tribological system is significantly reduced. This results in a smoother running-in process, which improves both the life and the wear pattern of the bearing. In addition, this technology enables energy and CO₂ savings from the first second of operation.

Thanks to its high-energy surface, Wieland HPC enables excellent lubricant wetting, which extends the service life of the entire system even under demanding tribological conditions. At the same time, the thin-film coating allows for easy application without the need for vacuum or component redesign. In addition, the coating is PFAS-free and already meets future EU requirements, making it a sustainable solution for industry.

Technical Highlights:

• Coating thickness: 1-5 µm
• High surface pressure: up to 400 MPa
• Low water absorption: only 0.32% after 24 hours
• Half the wear of bronze
• High vacuum capability without outgassing losses

Comparison with conventional coatings:

Unlike high-strength wear-resistant coatings, the high ductility of Wieland HPC effectively prevents the formation of micro-cracks under bending loads. This property significantly extends service life and increases system reliability, even under the most demanding operating conditions.
Experience the future of coating technology with Wieland HPC - for outstanding performance and a long service life for your systems.

For more information, please see our factsheet.