Insert Zirconia Full Ceramic Outer Spherical Bearing UC 203 204 205 206 207 208 209 210~212
| Product Name | UC Ceramic Bearing | Materials | Zirconia Oxide (ZrO2) |
|---|---|---|---|
| Feature | Wear-Resistance | Cage | PEEK/PTFE/NYLON |
| Lubrication | Self-lubricated | Size | Deep Groove.Can Be Customized. |
| Color | White | Sealing Type | Open/Single |
| Number Of Row | Single | Precision | P0~P6~P5 |
| Sample | Available | Application | Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms |
Insert Zirconia Full Ceramic Outer Spherical Bearing UC 203 204 205 206 207 208 209 210~212
UC‑Series Ceramic Insert Bearing
UC full‑ceramic outer spherical bearing; Self‑aligning insert ball bearing with set‑screw locking
Full Ceramic Insert Bearings are made entirely of ceramic material, are superior to common Steel Insert Bearings in many ways and are available in miniature and standard sizes.
Applications such as cryopumps, medical devices, semiconductors, machine tools, turbine flow meters, food processing equipment, robotics and optics. Ceramic materials commonly used for bearings are Silicon Nitride (Si3N4), Zirconia Oxide (ZrO2), Alumina Oxide (Al2O3) or Silicon Carbide (SiC.)
Full Ceramic Insert Bearings and wide inner ring bearings are used for mounting on shafts without the need for shoulders or adapters. The bearing is locked in place through setscrews or a locking collar. The inner ring usually extends on both sides of the bearing to provide extra shaft support, but some styles only extend on one side. Sometimes Full Ceramic Insert Bearings are simply standard radial bearings that fit into a housing and these bearings may be purchased as stand-alone products to use as replacements. While standard radial ball bearings must be pressed into a machined shaft, using special installation tools, insert bearings can be slip fit directly onto the shaft.
The spherical outer ring enables self‑aligning performance to compensate shaft misalignment. Compatible with standard pillow block housings such as UCP, UCF, UCFL units. Cages can be PTFE, PEEK, stainless steel or full‑complement ball structure.
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Material Types:
Design choices include:
Please contact us to confirm your requirements before the order
Material, Bearing: Zirconia Oxide or Silicon Nitride.
Ball Material: Zirconia Oxide or Silicon Nitride Ceramic
Material, Cage: PTFE, PEEK, Full Complement or Ceramic
ABEC Rating: Abec 3 or 5
Sealing Options: Two seals or open bearing
Lubrication: Grease, Oil, Dry Lubrication options
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Key Performance Parameters:
● High temperature resistance:
Zirconia ceramic bearings can work in environments up to 1000 ℃ or even 1200 ℃, while traditional metal bearings are prone to softening and deformation at high temperatures
● Corrosion resistance:
able to resist the erosion of chemical media such as strong acids and alkalis
● Self lubrication:
With low friction coefficient, it can achieve oil-free lubrication and is suitable for cleaning scenarios such as food processing.
● Insulation and non-magnetic:
suitable for precision equipment that requires avoidance of electromagnetic interference, such as medical magnetic resonance imaging devices
● Lightweight and Long Lifespan:
Ceramic materials have low density and can reduce centrifugal force during high-speed operation. Their lifespan is usually 3-5 times that of steel bearings
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| Item | Specification |
| Locking Method | Dual set‑screws on extended inner ring |
| Self‑aligning Angle | ±2°~±5° |
| Available Materials | Full‑ceramic: ZrO₂(Zirconia), Si₃N₄(Silicon Nitride) |
| Cage Options | PTFE(default), PEEK, |
| Precision Grade | P0 / P6 / ABEC‑3 / ABEC‑5 |
| Temperature Range | -70 ℃ ~ +400 ℃(depends on cage material) |
| Feature Highlights | Non‑magnetic, electrical insulation, corrosion‑resistant, low friction, dry‑lubrication available, lightweight, low centrifugal force at high speed |
| Sealing | Open type / custom sealing rings |
| Applicable Load | Mainly radial load, moderate axial load |
| Housing | Available |
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Performance Advantages
1. Corrosion Resistance: Resist acid, alkali, salt‑spray and humid environment, suitable for chemical, food‑processing and marine equipment.
2.Electrical Insulation: Prevent electric‑corrosion damage under electric‑current interference.
3. High‑speed Performance: Lower density of ceramic components reduces centrifugal load, supports higher rotating speed than steel bearings, extends service life under high‑speed operation.
4.Dry‑run Capability: Can run without grease/oil lubrication for maintenance‑free applications.
5. Thermal Stability: Low thermal expansion coefficient, stable clearance under wide temperature fluctuation.
Typical Application
Full Ceramic Insert Bearings are widely used as replacement bearings for Pillow Blocks, 2-Bolt Flanges, 3-Bolt Flanges, 4 Bolt Flanges, Take-Up Units, and many more. It can be costly to replace the whole unit however, buying just the replacement for the insert bearing can save you from over spending.
Zirconia ceramic outer spherical bearings are widely used in fields with low precision requirements but harsh environments, such as:
Industrial machinery and equipment
Equipment with corrosive media in chemical and metallurgical industries
Food processing machinery
electrical equipment
High end manufacturing fields such as aerospace and automotive
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