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Bearing.Ceramic Bearing Hybrid Bearing
Metal, plastic, and ceramic can be mixed to design and manufacture bearings customized for the hot environment, corrosion and wear resistance, allowed load, and rpm.
It can cover the disadvantages of ceramic and metal bearings and is customizable for working environments to guarantee high service life.
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Hybrid Bearing Components
Ceramic / Metal physical properties
| Inner/Outer ring | Ball | CAGE | Working Temperature (°C) | Corrosion Resistance | Applications |
|---|---|---|---|---|---|
| SUJ2 | ZrO2 / Si3N4 | PA66 / UPE / PP | 80 | POOR | Semiconductor equipment LCD equipment Food equipment Plating facility Chemical Facilities Medical facilities |
| SUJ2 | Si3N4 | PTFE / SUJ2 / SUS304 / PEEK | 200 | POOR | |
| SUS440C | Zr02 / Si3N4 | PA66 / UPE / PP | 80 | FAIR | |
| SUS440C | Si3N4 | PTFE / SUS304 / PEEK | 200 | FAIR | |
| SUS304 | Zr02 / Si3N4 | PA66 / UPE / PP | 80 | GOOD | |
| SUS304 | Si3N4 | PTFE / SUS304 / PEEK | 200 | GOOD | |
| SUS316 | Si3N4 | PTFE / PA66 / U PE / PP / SUJ2 / SUS304 / PEEK | 80 ~ 300 | Excellent | |
| SUS316 | Si3N4 | PTFE / PA66 / U PE / PP / SUJ2 / SUS304 / PEEK | 80 ~ 300 | Excellent | |
| SU5316 | Zr02 | PTFE / PA66 / U PE / PP / SUJ2 / SUS304 / PEEK | 80 ~ 300 | Excellent |
Ceramic / Metal physical properties
Material Properties |
Silicon Nitride Si3N4 |
Zirconia ZrO2 |
Silicon Carbide SiC |
SUS 440C | SUS 316 | Bearing Steel SUJ2 |
||||
|---|---|---|---|---|---|---|---|---|---|---|
| Demsity | g / ㎤ | 3.26 | 3.2 | 6.05 | 7.8 | 7.98 | 7.8 | |||
| Hardness | kg / ㎟ | 1,600 | 2,800 | 1,250 | 230 | 160 | 700 ~ 800 | |||
| Toughness | MN / m | 6.0 | 2.5 | 7.0 | - | - | 50 ~ 60 | |||
| Bending Strength | kg / ㎟ | 100 | 50 | 120 | - | 24 | - | |||
| Young's Modulus | 106kg / ㎟ | 3.2 | 4.0 | 2.0 | 2.0 | 2.0 | 2.1 | |||
| Specific Heat | ㎈ / g℃ | 0.19 | 0.16 | - | 0.11 | 0.11 | 0.11 | |||
| Thermal Expansion coeff | x10-6 / ㎟ | 3.5 | 4.2 | 9.0 | 10.1 | 10.5 | 10.9 | |||
| Heat Shock Resistance | △T,oC | 900 | 400 | 280 | - | - | ||||
| Themal Conductivety | w / mK | 29 | 120 | 3.0 | - | - | ||||
| Fatigue life | 100X | 50X | 80X | 0.5X | 1X | 0.1X | ||||
| Application Temperature | ℃ | 1,200 | 1,500 | 800 | 260 | 260 | 180 | |||
| Corrosion Resistance | Hydrochloric acid | Good | Good | Excellent | Fair | Fair | Poor | |||
| Nitric acid | Good | Good | Excellent | Fair | Fair | Poor | ||||
| Sulphuric acid | Good | Good | Excellent | Fair | Fair | Poor | ||||
| Phosphoric acid | Good | Good | Excellent | Fair | Fair | Poor | ||||
| Hydrofluoric acid | Good | Good | Excellent | Fair | Fair | Poor | ||||
| Sodium hyroxide | Good | Good | Good | Fair | Fair | Poor | ||||
| Salt water | Excellent | Excellent | Excellent | Fair | Fair | Poor | ||||
| Magnetism | Non-Magnet1sum | Weak-Magnet1sum | StrongMagnetisum | |||||||
| Conductivity/Insulation | Insulator | Conductivity | ||||||||