High-temperature applications for flow control require components that can withstand extreme thermal and mechanical loads. The rolling bearings in these systems perform a crucial function: they support valve spindles and actuators under combined axial and radial forces and ensure precise alignment despite thermal expansion and fluctuating pressures. Under conditions such as high temperatures, aggressive media, and limited lubrication options, the bearings minimize friction, ensure smooth and reliable movement, and contribute significantly to the durability, seal integrity, and overall performance of the flow control mechanism. Typical areas of application include the chemical and petrochemical industries, power plants, and aerospace applications.
Typical application requirements
Axial needle roller bearings:
- Supports unevenly distributed axial forces (combination of radial/axial forces)
Operating conditions:
- Rotates only during changes in flow area
- Very high temperatures ~ 500 °C
- Surrounded by flowing fluid
- Very high axial loads
Bearing requirements:
- Operating hours: >120,000 h
- Friction reduction
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Our development services:
The development of roller bearings for high-temperature applications for flow control requires the highest precision and engineering expertise. Due to the extreme requirements for temperature resistance, compact design, and reliable function, we rely on advanced simulations, innovative materials, and optimized geometries. The goal is to create bearing solutions that ensure minimal friction, maximum rigidity, and a long service life under high axial and radial loads and limited lubrication options.
Our typical development workflow for this application area:
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Analysis of current status
- System mechanics analyses
- Simulative system evaluation (digital twin)
- Identification of possible failure mechanisms
Definition and assessment of the safety factor
- Selection of critical parameters
- Simulative system assessment
- Variation of design parameters
Evaluation of internal slip in bearings
- Selection of critical parameters
- Postprocessing (calculation tools)
- Variation of design parameters
Prototype and series production
- Drawings and 3D data
- Manufacturing partners
- Delivery of samples and approval documentation, e.g., EMPB/PPAP