SHANGHAI FAMOUS TRADE CO.,LTD
| Payment Terms | T/T |
| Delivery Time | 2-4 weeks |
| Packaging Details | package in 100-grade cleaning room |
| Material Composition | Synthetic Sapphire (α-Al₂O₃), purity ≥99.99% |
| Size/Shape | Customized |
| Mohs Hardness | Level 9 |
| Friction Coefficient | 0.08–0.12 |
| Temperature Range | -200°C ~ +1800°C |
| Surface Roughness | Ra ≤0.005μm (mirror-grade polish) |
| Brand Name | ZMSH |
| Model Number | Sapphire Bearings |
| Certification | rohs |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Delivery Time | 2-4 weeks |
| Packaging Details | package in 100-grade cleaning room | Material Composition | Synthetic Sapphire (α-Al₂O₃), purity ≥99.99% |
| Size/Shape | Customized | Mohs Hardness | Level 9 |
| Friction Coefficient | 0.08–0.12 | Temperature Range | -200°C ~ +1800°C |
| Surface Roughness | Ra ≤0.005μm (mirror-grade polish) | Brand Name | ZMSH |
| Model Number | Sapphire Bearings | Certification | rohs |
| Place of Origin | CHINA | ||
| High Light | custom through-hole sapphire bearings ，precision sliding sapphire bearings ，sapphire bearings based on drawings | ||
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
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi...
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