HomeDIYer G5 Grade Silicon Nitride (Si3N4) Ceramic Bearing Ball, self-lubricating
Assortment of black silicon nitride ceramic balls from 0.8mm to 5.953mm
Extreme close-up macro shot showing the smooth, non-porous surface of a ceramic ball
Silicon nitride balls next to steel balls in a corrosive environment, demonstrating rust-free advantage
Ceramic balls installed in a high-speed bearing for a dental tool or spindle
Application in a chemical pump bearing, showcasing resistance to corrosion
Technical diagram comparing the thermal and physical properties of Si3N4 vs steel

Silicon Nitride Ceramic Bearing Ball G5 Self-Lubricating Rust Free Dia 0.8-5.953mm

$1.66 USD
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Silicon Nitride Ceramic Bearing Ball (Si3N4) G5 0.8–10mm 🔧 Ceramic Bearing Balls

As a U.S. Shopify seller, elevate your builds with Si3N4 Silicon Nitride Ceramic Bearing Balls — ultra-lightweight, self-lubricating, non-magnetic, and engineered for high-temperature, high-speed performance. ⚙️🔥

🌟 Key Features — Ceramic Bearing Balls (Si3N4)

  • ✅ G5 Precision: Exceptional roundness and dimensional stability
  • ✅ Ultra-Lightweight: ~59% lighter than steel, reduces centrifugal force at high RPM
  • ✅ High Hardness: Up to ~HRC 78 for superior wear resistance
  • ✅ High Temperature: Strength maintained up to ~1050°C
  • ✅ Low Thermal Expansion: ~1/4 of steel — excellent dimensional stability
  • ✅ Non-Magnetic & Insulating: Ideal for sensitive environments (MRI, electronics)
  • ✅ Self-Lubricating: Works in oil-free conditions, resists chemical corrosion

📊 Specifications — Ceramic Bearing Balls

Parameter Specification
Product Type Silicon Nitride Ceramic Bearing Ball (Si3N4)
Precision Grade G5
Diameter Range 0.8mm – 10mm (choose option)
Hardness Up to ~HRC 78
Thermal Expansion ~1/4 of steel
Operating Temp Up to ~1050°C
Magnetism / Conductivity Non-magnetic / Electrically insulating
Lubrication Self-lubricating; can run oil-free
Package Quantity per your selection

🔧 Applications — Ceramic Bearing Balls

  • 🏭 Full/mixed ceramic bearings, high-speed spindles
  • 🔬 Precision instruments, gauges, medical devices
  • 💧 Pumps, valves, seals in corrosive environments
  • ⚡ Electronics, non-magnetic assemblies, insulation parts

❓ FAQ — Silicon Nitride Ceramic Bearing Balls

Q: Why choose Si3N4 ceramic over steel?

A: It’s lighter, harder, corrosion-resistant, non-magnetic, and maintains strength at high temperatures — ideal for high-speed and sensitive applications.

Q: Can these run without oil?

A: Yes. They are self-lubricating and can operate under oil-free conditions where metal would fail.

Q: Are they suitable for electronics or MRI environments?

A: Absolutely — they’re non-magnetic and electrically insulating.

Q: How do I pick a size?

A: Match the OEM ball diameter and quantity. If upgrading from steel, keep the same nominal size for drop-in compatibility.

📝 Notes

  • Manual measurements may vary slightly.
  • Color may differ due to lighting and screens.
  • Package contents depend on the option selected.

🚀 Upgrade to Si3N4 Ceramic Bearing Balls Today!

Choose your diameter and quantity to boost speed, durability, and reliability.

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