2040C Lab Created Ruby Bearing For Jewelry Handicrafts And Clocks

Minimum Order Quantity:100pcs
Delivery Time:According to quantity
Payment Terms:T/T, Western Union
Place of Origin:Chongqing, China
Price:1USD-50USD
Supply Ability:10000PCS per month
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Location: Chongqing Chongqing China
Address: Room 2-11,No.50 Yunhan Road,Chongqing China
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Product Details

Synthetic Gem Lab Created Ruby Bearing For Jewelry Handicrafts And Clocks


Introduction


Sapphire, which is derived from the Latin Spphins, which means blue; it belongs to the corundum group of minerals in the trigonal crystal system. In the gem world, all colors of gem-grade corundum other than rubies are called sapphires.


The main component of sapphire is alumina (Al2O3). Corundum contains trace elements such as iron (Fe) and titanium (Ti), and presents colors such as blue, sky blue, and light blue, among which the bright sky blue is the best.


Basic characteristics


Sapphire precision parts are generally used in the wear-resistant and high-temperature parts of instruments, meters, and equipment.


Sapphire has a hardness of 9 on the Mohs level, second only to diamond, and has good wear resistance. At the same time, it has excellent chemical stability and can resist almost any acid and alkali corrosion. In addition, the maximum temperature of sapphire reaches 2060℃. It is precisely because of the above advantages of sapphire that sapphire is used in instrumentation equipment, which can significantly increase the service life and withstand various harsh environments.


The precision parts made of sapphire include: water meter and electric meter bearing, chemical pump through valve body, textile machine stopper, etc.


Sapphire precision parts often have complex shape requirements and precise sealing requirements.


We can customize various shapes according to customers' drawings.


We also have precision, grinding, polishing and testing equipment to ensure that each product meets the demanding requirements of customers.


Gem bearings are sliding bearings made of hard materials such as gemstones. A natural or synthetic gem (usually a sapphire) that, after careful grinding, is carefully ground out in a conical hole and can be used as a bearing for the head-turning shaft or for other precision instruments.


Sapphire bearings are mainly used in instrumentation. Instrument bearings bear a small load, but to rotate high accuracy, good sensitivity, long service life. Gemstones have small friction, high hardness, corrosion resistance, low coefficient of thermal expansion, high performance of pressure strength, to meet the requirements of the use of instrument bearings. The materials for making gem shafts include corundum, agate, microcrystalline glass, etc. Corundum is the body of alumina, natural and man-made. Natural corundum impurities are more, uneven texture, so artificial corundum is the most widely used.


GeneralChemical FormulaAl2O3
Cystal SystemHexagonal system
Melting Temperature2040℃
ThermalThermal ExpansionParallel to C-axis:6.7*10-6
Perpendicular to C-axis:5.0*10-6
Specific Heat0.18 Cal/gm°K(25℃)
MechanicalDensity3.98-4.1g/cm3
Hardness9 Moh's Scale
(Hv)≥1700kg/mm2
Modulus of Elasticity340-380Gpa
Compressive Strength2.1Gpa
Tensile Strength0.19Gpa
OpticalIndex of RefractionParallel to C-axis:1.769
Perpendicular to C-axis:1.769
Index of IR Transmission85%
ElectricalElectrical Resistance>1016Ω/cm(25℃)
Dielectric Constant7.5-10
ChemicalErosion ResistanceCan not be corroded by adid or alkali at mormal temperature, only can be corroded by HF at 300℃

Why US?


1. We’re the rare source manufacturer of color sapphire boule, and the most professional factory of sapphire processing, especially the special watch case.

2. We have our own sapphire grown equipent with CZ and KY method.

3. Professional customized production according to the drawing provided by clients.

4. Precision work of sapphire processing and polishing.

5. Experienced technicians and skilled workers.


FQA

1. Are you a trading company or factory?

We are a professional factory of sapphire products, also a trading company .


2.Can you do customized products?

Yes, we specialized in customized production or OEM work.

CAD,3D drawing are needed.


3.Could you provide samples?

Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.


4.What’s the delivery time?

It depends on the type of products and the quality.

For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.


5.How about the payment?

T/T payment is prefered.


6.How about the delivery?

Mostly by air, like DHL, Fedex.


China 2040C Lab Created Ruby Bearing For Jewelry Handicrafts And Clocks supplier

2040C Lab Created Ruby Bearing For Jewelry Handicrafts And Clocks

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