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CZ Sapphire Ruby Bearing

CZ Sapphire Ruby Bearing

Product Details

Place of Origin: Chongqing, China

Payment & Shipping Terms

Minimum Order Quantity: 100pcs

Price: 1USD-50USD

Packaging Details: Caron, Air bubble films

Delivery Time: 4-8weeks

Payment Terms: T/T, Western Union

Supply Ability: 10000PCS per month

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Specifications
Highlight:

CZ Sapphire Ruby Bearing

,

Al2O3 Ruby Bearing

,

CZ Sapphire vee jewel bearing

Material:
Sapphire
Growing Method:
CZ
Use:
Jewlery, Watch Case, Watch Glass
OEM:
Yes
Delivery Port:
Chongqing
Delivery Time:
According To Quantity
Color:
Ruby
Size:
Customized Size
Material:
Sapphire
Growing Method:
CZ
Use:
Jewlery, Watch Case, Watch Glass
OEM:
Yes
Delivery Port:
Chongqing
Delivery Time:
According To Quantity
Color:
Ruby
Size:
Customized Size
Description
CZ Sapphire Ruby Bearing

Round Flat Synthetic Bearing Without Holes For Precision Instruments

 

 

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.

 

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.

 

Gem 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.

 

(1) The cone of the outer circle of the grooved gem bearing shall not exceed one and a half of the allowable deviation of its outer diameter.
(2) The parallelity of the two ends of a slotted gem bearing shall not exceed one and a half of its height allowable deviation.
(3) The verticality of the outer circle of the grooved gem bearing to the bottom face is not greater than 0.005.
(4) The coaxiality of the grooved gem bearing groove and the outer circle: the conical bearing is not greater than 0.02mm, and the spherical bearing is not greater than 0.03mm.

 

 

General Chemical Formula Al2O3
Cystal System Hexagonal system
Melting Temperature 2040℃
Thermal Thermal Expansion Parallel to C-axis:6.7*10-6
Perpendicular to C-axis:5.0*10-6
Specific Heat 0.18 Cal/gm°K(25℃)
Mechanical Density 3.98-4.1g/cm3
Hardness 9 Moh's Scale
(Hv)≥1700kg/mm2
Modulus of Elasticity 340-380Gpa
Compressive Strength 2.1Gpa
Tensile Strength 0.19Gpa
Optical Index of Refraction Parallel to C-axis:1.769
Perpendicular to C-axis:1.769
Index of IR Transmission 85%
Electrical Electrical Resistance >1016Ω/cm(25℃)
Dielectric Constant 7.5-10
Chemical Erosion Resistance Can not be corroded by adid or alkali at mormal temperature, only can be corroded by HF at 300℃

CZ Sapphire Ruby Bearing 0CZ Sapphire Ruby Bearing 1

 

 

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.

 

Send your inquiry
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