Ceramic bearings are the most widely used and recognized special material bearings at present, and are widely used in high-end equipment such as high-speed motors, semiconductors, medical treatment, textiles, printing and CNC spindles.

Two Types of Ceramic Bearings

1. Hybrid ceramic bearings: inner and outer rings are made of bearing steel, rolling elements are silicon nitride (Si₃N₄)

2. Full ceramic bearings: inner and outer rings + rolling elements + cages are all made of ceramic materials

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Core Advantages of Ceramic Bearings

• Ultra-high speed: 50%–150% higher speed than all-steel bearings, with higher DN value
• Ultra-light weight: density is only 40% of steel, greatly reducing centrifugal force
• Extremely low friction: temperature rise is 30%–60% lower than steel bearings, energy-saving and longer service life
• High temperature resistance: silicon nitride can work stably at up to 800℃ without softening
• Super corrosion resistance: completely rust-proof, can be used for a long time in strong acids, alkalis and seawater
• Insulating and non-magnetic: non-conductive and non-magnetic, do not interfere with sensors and precision control

• Ultra-high hardness: 1.5 times the hardness of bearing steel, wear-resistant service life increased by 3–10 times

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The Most Suitable Scenarios for Ceramic Bearings

• High-speed spindles, high-speed motors, high-speed centrifuges
• Semiconductor equipment, testing instruments, medical imaging equipment
• Chemical engineering, electroplating, seawater, food sterilization equipment
• Non-magnetic, anti-static, low-noise and vacuum environments

• Precision equipment requiring long service life, maintenance-free and low heat generation

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