Product Details
ZrO₂ Outer Spherical Bearing
Parameter characteristics
Product Details
ZrO₂ Outer Spherical BearingDimensional Table
|
Bearing Model |
Overall Dimensions(mm) |
Mounting Dimensions(mm) |
Weight (kg) (Ref.) |
|||||||||
|
d |
D |
B |
r（Min） |
da（Min） |
da（Max） |
Da（Max） |
ra（Max） |
ZrO₂ |
Si₃N₄ |
plastic |
SUS |
|
|
UC220 |
100 |
180 |
108 |
/ |
/ |
/ |
/ |
3.46 |
1.85 |
/ |
4.498 |
|
The ZrO2 Outer Spherical Bearing is a high-performance engineering component designed for demanding applications where standard steel bearings fall short. Constructed primarily from zirconium oxide (ZrO2), this full-ceramic bearing offers a unique combination of exceptional corrosion resistance, electrical insulation, and operational stability in extreme environments. Its outer spherical ring design provides self-aligning capability, effectively compensating for minor static misalignment between the shaft and housing, which simplifies installation and enhances operational reliability in challenging setups.
A key advantage of this bearing lies in the superior material properties of ZrO2. It is inherently non-magnetic and electrically insulating, preventing electrical arcing damage that can destroy metal bearings. The material exhibits excellent corrosion resistance, enabling it to withstand exposure to seawater, acids, alkalis, and other harsh chemicals without degradation. With a low density and moderate high-temperature tolerance, it contributes to reduced rotational inertia and is suitable for high-speed operation. Furthermore, ZrO2 is self-lubricating and can operate in dry or medium-lubrication conditions, making it ideal for applications where contamination from lubricants must be avoided.
This bearing is characterized by its high hardness, resulting in exceptional wear resistance and a long service life, even under heavy loads and in abrasive environments. Its versatility makes it the optimal choice for a wide range of industries, including food and beverage processing, chemical and pharmaceutical equipment, semiconductor manufacturing, and precision instrumentation. In summary, the ZrO2 Outer Spherical Bearing delivers a robust, maintenance-friendly solution, offering outstanding durability, reliable alignment, and consistent performance in corrosive, high-speed, or electrically sensitive applications.
Product Features
Zirconia (ZrO₂)all-ceramic bearing has the characteristics of anti-magneticinsulation,wear-resisting and corosion-resistant,oil-free self-lubrication,high temperature and cold resistance,etc.The expansion caused by temperature difference does not occur in the temperature rangeof 100℃ to 600℃ for along period of time.Can be used in strong acid,strong alkali,inorganic,organic salt,seawater and other extremely harshenvironment and special conditions,rings and rolling element using zirconia (ZrO₂)ceramicmaterials.,The protector use5(PTFE)as the standardconfguration,and can also use fberglass strong nylon66(GRPA66-25),special engineering plastics (PEK,PI),stainless steel(ASISUS316,SUS304),brass(Cu),etc.
Product Confguration
| Inner And Outer Ring |
ZRO₂ |
|
Cage |
PTFE ( Poly tetra fuoroethylene )、PEEK ( polyetheretherketone )、PA ( Polyamide )UPE(Ultra-high molecular weight polyethylene)、SUS( stainless steel ) |
|
Ball |
ZRO₂(Zirconia)、Sl₃N₄(Siliconnitride)、SSlc(Silicon carbide) |
|
Seal |
Open、ZZ、2RS |
Corrosion Resistance of Zirconia Ceramic Bearing
| Chemical Environment |
Molecular Formula |
Contents % |
Temperature | Anti-corrosion Property |
|
Acetic Acid |
CH3COOH |
|
Boiling |
Exeellent |
| Acetic Acid/Acetic Anhydride |
CH3COOH+CH3CO |
50/80 |
Boiling |
Exeellent |
|
Water+Sodium Chloride |
H2C03 |
|
Boiling |
Exeellent |
|
Carbonic Acid |
H2C03 |
|
Boiling |
Exeellent |
|
Copper |
Cu |
|
1400℃ |
Exeellent |
| Sour Food |
|
|
Boiling |
Exeellent |
|
Fruit Juice |
|
|
Boiling |
Exeellent |
|
Hydrochloric Acid |
HCL |
35 |
25℃ |
Good |
|
Hydrochloric Acid+Iron Oxide |
HCl+FaCl2 |
|
Boiling |
Good |
|
Hydrofluoric Acid |
HF |
|
25℃ |
None Resistant |
|
Nitric Acid |
HN03 |
83 |
25℃ |
Good |
|
Nitric Acid+Hydrochloric Acid |
HN03+HCL |
80+20 |
Boiling |
Good |
|
Phosphoric Acid |
H3P04 |
85 |
25℃ |
Exeellent |
|
Potassium Hydroxide |
KOH |
|
25℃ |
Exeellent |
| Sodium Carbonate+Sulfuric Acid |
Na2C03 4-H2S03 |
18/20 |
925℃ |
Exeellent |
|
Sodium Hydroxide |
NaOH |
|
Boiling |
Exeellent |
|
Sulfuric Acid |
H2S04 |
20 |
25℃ |
Exeellent |
|
Sulfuric Acid |
H2S04 |
98 |
50℃ |
Good |
|
Aluminium |
AL |
100 |
700℃ |
Exeellent |
|
Zinc |
Zn |
100 |
5000℃ |
Good |
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