Ceramic Balls
Ceramic balls offer significant advantages over steel balls, especially in high-speed applications or in harsh environments such as chemical, vacuum, or high-temperature conditions. Bearings equipped with ceramic balls can enhance performance and significantly extend service life.
XYB provides G5 grade silicon nitride (Si₃N₄) ceramic balls designed for use in loose ball wheel systems, including models like Campagnolo and Shimano hubs. These balls are ideal for applications where weight, durability, and performance are key factors.
Material Specifications
| Alumina Oxide | Zirconia Oxide | Silicon Nitride | |
|---|---|---|---|
| Composition | 99.5% Al₂O₃ / 0.5% other | 97% ZrO₂ / 3% MgO | 87% Si₃N₄ / 13% other |
| Hardness | 1700 Hv | 80 - 84 Ra | 1400 - 1700 Hv |
| Ultimate Tensile Strength | 31,000 psi | 60,000 psi | - |
| Ultimate Compressive Strength | >300,000 psi | 285,000 psi | >570,000 psi |
| Modulus of Elasticity | 53 x10ⶠpsi | 29 x10ⶠpsi | 44–45 x10ⶠpsi |
| Maximum Working Temperature | 1400°C | 2400°C | 1000°C |
| Corrosion Resistance | Inert except for hydrofluoric and hot concentrated sulfuric acids. | Inert to most substances, not recommended for environments containing hydrochloric acid or strong alkaline solutions. | Inert to most substances. |
Key Benefits of Silicon Nitride Ceramic Balls
- Lightweight – only 40% the weight of steel balls, which improves efficiency and reduces energy consumption.
- Lower torque required for pedaling, making it ideal for high-performance applications.
- Low thermal expansion ensures stable performance even at high temperatures.
- Operates effectively in low-lubrication environments, reducing maintenance needs.
Whether you're looking for improved performance in cycling components, industrial bearings, or specialized mechanical systems, our ceramic balls provide a reliable and long-lasting solution that outperforms traditional materials in many critical areas.
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