SHANGHAI FAMOUS TRADE CO.,LTD
| Payment Terms | T/T |
| Delivery Time | 2-4weeks |
| Packaging Details | package in 100-grade cleaning room |
| Size | Customized |
| Material | Al₂O₃ Single Crystal |
| Inner Diameter | 0.05mm-3mm |
| Tolerance | ±0.001mm |
| Surface Roughness | Ra≤0.01μm |
| Applications | Aerospace & Defense, Medical Devices |
| Brand Name | ZMSH |
| Model Number | Ruby Bearings |
| Certification | rohs |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Delivery Time | 2-4weeks |
| Packaging Details | package in 100-grade cleaning room | Size | Customized |
| Material | Al₂O₃ Single Crystal | Inner Diameter | 0.05mm-3mm |
| Tolerance | ±0.001mm | Surface Roughness | Ra≤0.01μm |
| Applications | Aerospace & Defense, Medical Devices | Brand Name | ZMSH |
| Model Number | Ruby Bearings | Certification | rohs |
| Place of Origin | CHINA | ||
| High Light | synthetic ruby jewel bearings ，Al₂O₃ single crystal bearings ，precision metering sapphire bearings | ||
| Parameter | Technical Definition | Standard Range | Functional Impact |
|---|---|---|---|
| Bore ID (Inner Dia.) | Primary dimension for shaft insertion. | 0.05 mm – 3.00 mm | Determines the clearance gap; vital for minimizing runout. |
| ID Tolerance | Machining precision limit. | ±0.001 mm | Guarantees a consistent, vibration-free fit. |
| Outer Dia. (OD) | External housing dimension. | 0.8 mm – 10.0 mm | Critical for interference fits (press-fitting). |
| Roundness | Circular geometry perfection. | < 0.5 μm | Prevents elliptical rotation and uneven wear. |
| Surface Finish (Ra) | Micro-topography smoothness. | Ra ≤ 0.01 μm | Directly dictates friction levels and lifespan. |
| Crystal Grade | Optical & structural purity. | VVS / Prime | Ensures high tensile strength without internal stress. |
The operational advantages of our ruby bearings are derived from the intrinsic physics of synthetic sapphire:
Standard in electricity meters, fluid flow sensors, and pressure gauges where low friction enables high measurement sensitivity.
The "Jewels" in mechanical watches. Essential for reducing friction in the escapement and balance wheel assembly.
Critical for the stability of gyroscopes, inertial guidance units, and optical targeting systems in defense applications.
Used in blood analyzers and surgical tools due to their biocompatibility and ability to withstand sterilization.
Provides non-magnetic, dust-free support for wafer handling robotics and lithography stages.
Key components in CMM probes, dial indicators, and laser alignment tools.
Q1: Is the material natural ruby or synthetic?
A: We strictly use Synthetic Sapphire (Al₂O₃). While chemically identical to natural gems, lab-grown crystals offer superior structural purity and consistent hardness required for industrial precision.
Q2: How do jewel bearings improve instrument life?
A: By providing a surface harder than steel with a mirror finish, they drastically minimize friction. This prevents the "pivotal wear" that typically causes instruments to lose accuracy over time.
Q3: Can these replace stainless steel bearings?
A: Yes. In applications requiring zero corrosion, non-magnetic properties, and lubrication-free operation, ruby bearings are vastly superior to steel alternatives.
Search Tags: #SyntheticRubyBearings #PrecisionJewels #Al2O3Components #IndustrialSapphire #MicroBearings
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 widel... 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 widel...
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