The advantages of ZrO2 full ceramic ball bearings as below:
1. Could be used at higher temperature. Ceramic maintains mechanical properties at high temperature, so full ceramic bearing can be used at elevated temperature.
2. Corrosion resistant. Full ceramic bearing are more suitable for chemical industry application.
3. More suitable for temperature-variation application. Because thermal expansion co-efficiency of ceramic are smaller than metal, so the change of clearance of full ceramic bearing is smaller than that of metal bearing.
4. More resistance to seizing due to smaller thermal expansion.
5. Could work under poor lubrication, because ceramics are self-lubrication. Full ceramic bearing could be used at high-vacuum environment.
6. Could be used as insulation bearing and can prevent Electrical Arcing because ceramics is not electrical conductor.
7. Could be used in magnetic environment because ceramics do not respond to magnetic forces.
Silicone Nitride is the best ceramic material used for the ceramic bearings.
1) It has the density 3.20g/cm3, and is only half weight of zirconia bearings.
2) More light means more speed.
3) Chemical resistant. Can work in various chemicals.
4) No need lubrication, clean, and can wash in the water.
5) Non-magnetic and insulation. Reliable working.
6) Without cage, Constant working in high temperature till 800 Centigrade.
7) Outstanding long time working in low temperature till -80 Centigrade.
|
Specifications(ZrO2 ceramic bearing) |
|
|
Unit |
Value |
|
Composition |
wt100% |
95% zirconia, 5% yttria |
|
Color |
--- |
Ivory |
|
Bulk Density |
g/cm3 |
6.01 |
|
Water Absorption |
% |
0 |
|
Gas Permeation |
% |
0 |
|
Grain Size |
Microns |
0.5 |
|
Hardness (Vickers) |
HV |
1290 |
|
Flexural strength |
MPa (kpsi) |
1000 (145) |
|
Modulus of Elasticity |
GPa (psi • 106) |
204 (30) |
|
Fracture Toughness |
MPa • m 1/2 |
7 |
|
Poisson's Ratio |
--- |
0.31 |
|
Thermal Expansion (25°C - 1000°C) |
10-6/°C (10- 6/°F) |
10.3 (5.8) |
|
Thermal Conductivity |
Btu • in/ft2 • h • °F |
15 |
|
Specific Heat |
cal/g - °C |
0.32 |
|
Maximum Temperature Use (no load) |
°C (°F) |
2400 (4350) |
Our company is an Industry and trade integration modern enterprises specialized in bearing manufacture, and passed ISO9001-2000 international quality management system certiIndustry and trade body specialized in bearing manufacture and import and export right of modern enterprises, and passed ISO9001-2000 international quality management system certification. Since its inception, already has a standardized production base, excellent production equipment and perfect quality inspection system and professional commitment to bearing product development, production, sales and service, which makes GQ bearing in the bearing industry has become well-known brands.
Our factory is located in China' S important bearing sales base - Wuxi City, Jiangsu Province. Sales headquarters located in China' S economic and trade center in Pudong District, Shanghai Lujiazui CBD core area.
Our company is the professional company which producing and processing deep groove ball bearings, spherical roller bearings, tapered roller bearings, agricultural bearings, bearings and other companies excavator professional, and has a complete and scientific quality management system. At the same time according to customer drawings, sample order processing, to provide OEM and processing services.
The company has industry-leading configuration reasonable production and testing equipment to ensure product prenatal, delivery and postpartum quality of each process. Adopts advanced production techniques and technologies, from skilled workers under the guidance of professional engineers with, the use of modern management tools, providing our customers with high quality bearing products. The company changed the traditional production operating environment, build a clean, non-polluting clean production workshop of the company, in order to reduce the impact of fly ash product noise.
Our products are widely used in: Automotive, electric power, metallurgy, mining, machinery manufacturing, maintenance and other fields. Product sold: The United States, Canada, India, Pakistan, Iran, Egypt, Russia and other countries.
We continue to explore new and innovative, determined efforts to create a competitive product. At the same time, we are committed to the development of high precision, long life high quality bearings. We have been pursuing the goal is to provide customers with quality products and excellent service.
The company keep its quality, user-oriented commitment to quality and efficient service standards, mutual benefit and common development for business purposes, and sincerely welcome home and abroad come to negotiate business letter.
