Send Message
ARH Sapphire Co., Ltd
products
Home /

products

Multifunctional Wear Resistantance Ruby Bearing Single Oil Tank

Multifunctional Wear Resistantance Ruby Bearing Single Oil Tank

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

Get Best Price
Contact Now
Specifications
Highlight:

Multifunctional Wear Resistantance Ruby Bearing

,

multifunctional Ruby Bearing

,

multifunctional gem 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
Multifunctional Wear Resistantance Ruby Bearing Single Oil Tank

Sapphire Bearings Single-Oil Tank Through-Hole Gemstone Bearings

 

 

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.

 

Through-hole ruby bearings mainly have flat through-hole gem bearings, spherical through-hole gem bearings, single-oil tank through-hole gemstone bearings, double-oil tank through-hole gem bearings.

 

Product specifications:

 

1. Outer circle diameter D:0.06-20.00mm, outer circle tolerance up to 0.005mm.

2. Thickness H:0.20-8.00mm, thickness tolerance of up to 0.01mm, two-sided parallelity error is not greater than 0.02mm, surface roughness up to Rz0.1 (mirror), the verticality error of both ends relative to the inner hole axis is not greater than 1 degree.

3. Inner hole diameter d:0.13-3.00mm, aperture tolerance can be controlled at a minimum of 0.004mm, inner hole roundness tolerance and cylindrical tolerance is not large bearing inner hole tolerance.

4. Oil tank: depth h - 1/3H, tolerance minimum can be controlled at 0.04mm, curvature radius SR minimum can be controlled at 0.30, surface roughness up to Rz0.2 .

 

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℃

 

 

Multifunctional Wear Resistantance Ruby Bearing Single Oil Tank 0

 

 

 

 

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
Please send us your request and we will reply to you as soon as possible.
Send