Ceramic Bearings With High Temperature Stability, Corrosion Resistance, Wear Resistance, And Oil-Free Lubrication

INDRON’s high-temperature ceramic bearings are engineered using advanced silicon carbide (SiC) ceramics and innovative structural designs to meet the demands of extreme industrial environments. These bearings excel in high-temperature resistance, corrosion and wear resistance, and are capable of running without lubrication—making them ideal for applications in mining, chemical processing, food production, marine engineering, aerospace, and more.

High-temperature Ceramic Bearings Features

• Extreme Heat Resistance: Made from silicon carbide (SiC) or silicon nitride (Si₃N₄) ceramics, INDRON bearings maintain structural integrity at temperatures up to 1400°C, far beyond the capabilities of traditional steel bearings (which typically max out around 500°C).
• Superior Corrosion and Wear Resistance:
  
  • Ceramic materials resist aggressive chemicals including acids, alkalis, and salts, making these bearings suitable for highly corrosive environments such as chemical plants and offshore platforms.
  • High hardness (HRC 75–80) and compressive strength ensure durability under abrasive conditions and reduce the risk of spalling and surface fatigue.
• Lubrication-Free Operation: These bearings operate efficiently without grease or oil, eliminating the risk of lubricant failure at high temperatures. Ideal for vacuum environments or cleanrooms where lubrication is impractical.

• Lightweight and Rigid: Ceramic bearings are about 40% lighter than steel equivalents, reducing centrifugal forces and vibration. This contributes to improved efficiency and higher operating speeds.

• Electrical Insulation: Ceramics are non-conductive, providing excellent insulation in electric motors, generators, and other power systems. This prevents electrical arcing and extends equipment life.

  Introduction to Common Guide Bearing Materials

Innovative Structural Design

INDRON has addressed the inherent brittleness of ceramics with several structural enhancements:

• Damping Buffer Layer
  A German-engineered NDI elastomer layer is placed between the ceramic sleeve and bearing housing, offering shock absorption and axis self-alignment to reduce stress during installation and operation.

• Integrated Cooling Channels
  Circular cooling passages are embedded in the outer diameter of the ceramic sleeve to improve heat dissipation and further reduce thermal stress.

• Tapered Locking Structure
  The ceramic sleeve and gland interface are precision-machined with a sloped contact surface and step-fit design, preventing rotation and minimizing damage caused by differential thermal expansion.

Application Fields

• Mining: Slurry pumps, material conveyors in abrasive and corrosive environments.
• Chemical Processing: Ideal for aggressive chemical exposure.
• Food Industry: Oil-free operation ensures contamination-free performance.
• Marine Engineering: Resistant to seawater corrosion, perfect for ships and offshore platforms.
• Aerospace: Withstands extreme temperatures and speeds in turbines and engines.

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