Nazwa marki: | ZMSH |
Numer modelu: | szafirowe łożyska |
MOQ: | 25 |
Cena £: | by case |
Czas dostawy: | 2-4 tygodnie |
Warunki płatności: | T/t |
Custom Through-Hole Sapphire Bearings Precision Sliding Bearing Based on Drawings
A sapphire bearing is a precision sliding bearing that uses synthetic sapphire (single-crystal aluminum oxide, α-Al₂O₃) as its core material, formed through high-temperature melt growth and precision machining. With a Mohs hardness of 9 (second only to diamond), it exhibits an extremely low friction coefficient, excellent wear resistance, and strong corrosion resistance. Recognized as an ideal bearing material for instruments, control devices, and high-precision mechanical systems, it maintains long-term stable operation under harsh conditions such as high temperatures and strong corrosive environments.
Parameter Category | Specific Value/Characteristic |
Material Composition | Synthetic Sapphire (α-Al₂O₃), purity ≥99.99% |
Mohs Hardness | Level 9 |
Friction Coefficient | 0.08–0.12 (against steel) |
Temperature Range | -200°C ~ +1800°C |
Surface Roughness | Ra ≤0.005μm (mirror-grade polish) |
Corrosion Resistance | Resistant to acids/alkalis (except HF), oxidation |
Thermal Conductivity | 25.12 W/m·K (@100°C) |
Dielectric Constant | 11.5 (∥c-axis), 9.3 (⊥c-axis) |
2. Customized Ruby Bearings Mohs Hardness 9 for Precision Instrumentation
1. Q: How does a jewel bearing work?
A: A jewel bearing operates by allowing a metal spindle to rotate within a pivot hole lined with a hard gemstone material (like synthetic sapphire or ruby), which minimizes friction through its ultra-smooth, hard surface.
2. Q: What are the types of bearings?
A:Bearings are primarily categorized into two main types: rolling element bearings (such as ball bearings and roller bearings) and plain/sliding bearings (like jewel bearings or fluid bearings), each designed to support different load directions and motion requirements.
Tags: # Custom Through-Hole Sapphire Bearings, #Sapphire Bearings, #Double-Side Polished, #High-Purity, #Optical Component, #Corrosion-Resistant, #High-Temperature Rated, #Mohs Hardness 9, #Precision Instrumentation, #Aluminum Oxide, Al₂O₃, #Sapphire, #Precision Sliding Bearing, #Bearing Based on Drawings