■Ceramic (alumina 95)
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| Ceramics have excellent wear resistance and heat resistance, have a stronger bending length than ordinary steel, have less elastic changes, and are chemically very stable materials. Although it has the disadvantages of being easy to break and poor processability, it is lightweight, hard, high-temperature and heat-resistant, | |||||||||||
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| Washer type A |
| Shaft collar type B |
| Flange type F |
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| d | L | D |
| d | L | D |
| d | L | D | H |
| 3 | 3 | 10 |
| 3 | 5~50 | 6 |
| 3 | 10、15 | 6 | 10 |
| 4 | 3 | 12 |
| 4 | 5~50 | 8 |
| 4 | 10、15 | 8 | 12 |
| 5 | 3 | 15 |
| 5 | 5~50 | 10 |
| 5 | 10、15 | 10 | 15 |
| 6 | 3 | 20 |
| 6 | 5~50 | 10 |
| 6 | 10、15 | 10 | 20 |
| 8 | 3 | 25 |
| 8 | 5~50 | 12 |
| 8 | 10、15、20 | 12 | 25 |
| 10 | 3 | 30 |
| 10 | 5~50 | 14 |
| 10 | 10、15、20 | 14 | 30 |
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| Reference: The information in the table is the general value of the material. It is a fragile material, so please be careful when handling it. | |||||||||||
| Characteristic distinction | unit | Alumina99 | Alumina95 | 氧化鋯 | steelS45C | ||||||
| Dielectric breakdown strength | KV/mm | 18 | 16 | 15 | － | ||||||
| Volume resistivity | Ω-cm | >1012 | >1012 | >1012 | － | ||||||
| Bending strength | KN/cm2 | >35 | >29 | >110 | － | ||||||
| Compressive strength | KN/cm2 | 300 | 250 | 250 | － | ||||||
| Expansion rate | 1/℃ | 8X10-6 | 7.8X10-6 | 10X10-6 | 13.6 | ||||||
| Thermal conductivity | W/m.K | 31 | 22 | 3 | 52 | ||||||
| heat resistance | ℃ | 1500 | 1400 | 1500 | － | ||||||
| water absorption | % | 0 | 0 | 0 | 0 | ||||||
| proportion | g/cm5 | 3.85 | 3.6 | 5.9 | 7.8 | ||||||
| hardness | HV | 1700 | 1600 | 1400 | 130 | ||||||
| Main material | － | A1203(>99%) | A1203(>95%) | ZrO2(>94%) | S45C | ||||||