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Ceramic Sliding Bearings: Precision Advancements

Featured Product from Suntech Applied Materials (Hefei) Co.,Ltd

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The application of fluid floating and sliding bearings, specifically ceramic sliding bearings, has emerged as a game-changer for high precision spindles. Traditional oil lubricated sliding bearings face challenges in maintaining thermal stability during high-speed rotation due to the viscostic nature of lubricating oil. The solution lies in utilizing water as a lubricant, offering lower viscosity and better thermal stability.

Ceramic Advantages:

  • Wear Resistance: Ideal for boundary friction and dry friction in water lubrication without corrosion.
  • Corrosion Resistance: Overcoming limitations of metal bearings in water lubrication.
  • High Rigidity: Reducing mechanical vibration, improving overall accuracy.
  • Longevity: High hardness, compressive strength, and low friction coefficient for an extended usable life.
  • Thermal Expansion: Suitable for environments with significant temperature differences.

Lubricant Choice:

The adoption of water as a lubricant over traditional mineral oil brings multiple advantages. Water's higher specific calorific value results in lower temperature rise during high-speed spindle operation. Additionally, water's inherent safety features, such as no flash point and natural extinguishing properties, make water-lubricated spindles a safer choice.

Considerations for Engineers:

For those involved in selection or research and development of precision spindles, the ceramic sliding bearing stands out as a solution to achieve high-speed and high-precision performance. The material's unique properties address challenges posed by traditional metal bearings, making it a compelling choice for advancing spindle technology.