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| الاسم التجاري: | ZMSH |
| الـ MOQ: | 10 |
| وقت التسليم: | 2-4 أسابيع |
| شروط الدفع: | تي/تي |
Sapphire Bearing Wear-Resistant Gemstone Bearings for Precision Instruments
Sapphire bearings are high-performance components made from synthetic sapphire (single-crystal Al₂O₃), renowned for their extreme hardness, excellent wear resistance, and chemical stability. Ideal for precision instruments, high-end industrial equipment, aerospace, and medical applications, sapphire bearings ensure low friction, long service life, and high dimensional accuracy.
Ultra-High Hardness
Mohs hardness: 9, second only to diamond
Superior wear resistance compared to metal bearings
Suitable for high-load and high-friction applications
Corrosion Resistance
Resistant to acids, bases, and most chemicals
Suitable for harsh and corrosive environments
High-Temperature Resistance
Stable performance up to 1800°C
Low Friction Coefficient
Smooth surface reduces energy loss
Improves operational efficiency
High Precision
Machined to tight tolerances for demanding applications
| Property | Specification |
|---|---|
| Thickness | 0.5–300 mm |
| Size Tolerance | ±0.01 mm |
| Edge Finish | Ground and beveled |
| Surface Quality | Standard 40-20 scratch-dig |
| Surface Flatness | Best λ/4 @ 633 nm |
| Parallelism | ≤3 arc min (≤0.9 mrad) |
| Clear Aperture | >80% of central diameter |
| Hardness (Knoop) | 1370 kg/mm² |
| Young's Modulus | 3.4 × 10¹¹ N/m² |
| Thermal Conductivity | 22 W/m·K |
| Thermal Expansion Coefficient | 8.4 × 10⁻⁶ K⁻¹ |
Precision Instruments – High-precision measuring equipment, microscopes, and optical devices
Aerospace – Aircraft engines, satellite components, and spacecraft parts
High-End Industrial Equipment – Semiconductor manufacturing, laser cutting, high-speed machinery
Medical Equipment – Surgical instruments, dental tools, and medical imaging systems
Watchmaking – Bearings and components for high-end mechanical watches
Q1: What material is a sapphire bearing made of?
A: Sapphire bearings are typically made of synthetic sapphire, ruby, spinel, quartz, or diamond for high hardness, wear resistance, and low friction.
Q2: How does a sapphire bearing work?
A: It reduces friction and energy loss through its hardness and low friction coefficient, ensuring smooth, precise, and efficient operation in high-speed or precision equipment.