In recent years, the application of fluid floating and sliding bearings in high precision spindles has garnered significant attention. Traditional oil-lubricated sliding bearings struggle to maintain thermal stability in high-speed rotations due to the viscous nature of lubricating oil, resulting in challenges for adherent spindles.

Key Features and Applications:

1. Lubricant Innovation:

   • Traditional mineral oil is replaced with water for superior thermal stability in high-speed spindles.
   • Water's higher specific heat reduces temperature rise in the friction pair during operation.
   • Water-lubricated spindles exhibit enhanced safety with no flash point and inherent fire-extinguishing properties.

2. Ceramic Material Advantages:

   • Ceramic sliding bearings utilize materials with exceptional properties compared to traditional metal bearings.
   • Wear resistance ensures optimal performance in boundary lubrication and even short dry friction conditions.
   • Excellent corrosion resistance, insulation, and high-temperature performance make ceramics ideal for demanding applications.
   • High rigidity minimizes mechanical vibrations, improving overall precision.
   • The combination of high hardness, compressive strength, and low friction coefficient results in an extended usable life.
   • Low thermal expansion characteristics enable ceramic sliding bearings to thrive in environments with significant temperature variations.

Applications:

• High precision spindles in machinery and manufacturing.
• Demanding environments requiring corrosion resistance and high-temperature stability.
• Systems where reducing mechanical vibrations is crucial for accuracy.
• Environments with large temperature variations, thanks to low thermal expansion characteristics.

Conclusion: The advent of ceramic sliding bearings represents a groundbreaking shift in high-speed, high-precision applications. With water as a lubricant and ceramic materials providing unparalleled performance, these bearings offer enhanced thermal stability, longevity, and safety, making them indispensable for modern precision spindles.