Product Specifications
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 with hydrochloric or strong alkaline solutions. | Inert to most substances. |
Description
Ceramic balls are manufactured from advanced materials such as Alumina Oxide, Zirconia Oxide, or Silicon Nitride. Compared to traditional steel balls, they offer significant performance benefits. These ceramic balls are 40% lighter, have a 29% lower coefficient of thermal expansion, which helps them maintain their shape under temperature fluctuations, and are 150% harder than steel. This makes them ideal for high-speed and high-performance applications where durability and efficiency are critical.
Benefits
These ceramic balls are lightweight, highly durable, and extremely hard, making them perfect for demanding environments such as high-speed bearings in machine tool spindles, vacuum pumps, and other precision equipment. Their hardness reduces friction, allowing more energy to be converted into useful work, which increases efficiency. In some cases, ceramic balls can last up to 100 times longer than steel in high-speed applications. Additionally, they are chemically inert, offering excellent resistance to corrosion and chemical degradation, which enhances their longevity and reliability in harsh conditions.
Applications
Ceramic balls are widely used in various industries including automotive, aerospace, and manufacturing. Their light weight and strength make them ideal for use in aircraft braking systems, engine components, and other high-stress environments. They are also commonly found in everyday products such as aerosol cans, sliding joints, seat mechanisms, castors, ball transfer units, quick disconnect couplings, and fasteners. Their versatility and performance characteristics make them a preferred choice over traditional metal balls in many applications.
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