SiC Ceramic Bearing Balls G5 Grade High Hardness
Silicon Carbide (SiC) Ceramic Balls are an advanced ceramic material renowned for their exceptional hardness, extremely high wear resistance, outstanding chemical corrosion resistance, and excellent thermal shock resistance. With a density of approximately 3.10-3.20 g/cm³, they are lighter than many metals, helping reduce component weight and inertia. These balls can be manufactured via processes like pressureless sintering, offer a flexible size range from sub-millimeter to several centimeters, and can be precision-ground to G5 grade or higher. Surface finish can be polished according to application needs to meet specific requirements for precision and friction characteristics.
Key Technical Specifications
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Product Name
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SIC Ceramic Balls
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Brand
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ZMSH
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Material
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Silicon Carbide
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Grade
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G5 G10 G3
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Hardness
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HV2600
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Surface
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High polished,mirror surface
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Density
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3.05-3.15g/cm3
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Color
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Gray
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Maxium T
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1600℃
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Size
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0.5-100mm
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MOQ
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100pcs
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Sample
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Free sample available
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Payment
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T/T, L/C, etc.
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Packaging
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Vacumm package
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SiC Ceramic Balls Characteristic
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Characteristic Dimension
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Core Advantage
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Exceptional Hardness
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Mohs hardness up to Grade 9, Vickers hardness (Hv) typically in the range of 2000-2500, its hardness is second only to diamond.
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Excellent Wear Resistance
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Due to its ultra-high hardness, it can significantly withstand wear in high-friction environments, ensuring an exceptionally long service life.
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High Thermal Stability
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Melting point as high as ~2050°C, can maintain stable strength and hardness at 1600°C or even higher temperatures, strength remains almost unchanged at high temperatures.
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Low Thermal Expansion Coefficient
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Thermal expansion coefficient as low as ~4.5×10⁻⁶/K, making it less prone to cracking or deformation under drastic temperature changes, with excellent thermal shock resistance.
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Outstanding Chemical Inertness
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Exhibits excellent corrosion resistance to most strong acids, strong alkalis, and salts, suitable for extreme chemical environments with pH 1-14 (e.g., electroplating solutions, seawater desalination systems).
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Lightweight
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Density is approximately 3.10-3.20 g/cm³, less than 40% of steel balls. This can significantly reduce the inertial load of high-speed rotating equipment, with an energy saving rate of 15%-20%.
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Low Friction Coefficient
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The friction coefficient is relatively low (approx. 0.02-0.1). Combined with its high hardness, it can reduce motion resistance, friction heat accumulation, and equipment temperature rise.
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Electrical Insulation & Non-Magnetic
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It is a good electrical insulator (resistivity >10¹² Ω·cm) and is non-magnetic. This is crucial for avoiding interference with precision electromagnetic equipment.
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SiC Ceramic Balls Applications
- Precision Bearings: High-speed spindles, aerospace engines, dental drills
- Chemical Corrosion Resistance:Pump/valve seals, reactor bearings, marine equipment
- Semiconductor Manufacturing: Wafer polishing, precision measuring instruments
- Water Filtration Systems: Oil-water separation, wastewater treatment, drinking water purification
- New Energy & High-Temperature Applications: Wind turbine spindles, electric vehicle motors, gas turbines
Related SiC Ceramic Balls Recommendations
1. Diameter 10mm SiC Ceramic Ball High Temperature Resistance High Hardness Material
2. Sic/Silicon Carbide Ceramics Ball Custom Size Bearing Beads Small Parts
Q1: Why choose silicon carbide (SiC) ceramic balls over traditional materials?
A1: They offer exceptional hardness (Mohs 9+), wear resistance, and thermal stability (up to 1600°C), significantly extending service life in high-stress environments like precision bearings and semiconductor processing.
Q2: In which industries are SiC ceramic balls commonly used?
A2: They are critical in semiconductor manufacturing (wafer polishing), chemical corrosion-resistant systems, high-temperature energy applications (e.g., wind turbines), and water filtration due to their durability and inertness.
Tag: #SiC Ceramic Balls, #Customized, #SiC, #Precision Bearings , #Bearing Balls, #High-Performance Components, # Wear Resistance, #G5 Grade, #High Hardness
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