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[China]
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Address: Room 101, Factory building No.14, No. 41 Guangyuan Road, Wuqing Development Zone, Wuqing District, Tianjin
Contact name:Cooper wang
Zhongxing Shiqiang Technology (Tianjin) Co., Ltd. |
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7200 Series Ceramic Angular Contact Balls Bearings In Material Of Si3N4/SSiC/ZrO2
Why choose us:
Our company can according to the different needs of users,
custom-make all ceramic bearings and hybrid ceramic bearings with
ceramic balls of all precision levels, customized size range can
be: inner diameter from 5 to 120mm, outer diameter from 10 to
200mm, including special non-standard size, special non-standard
clearance, pairing and universal pairing angular contact
high-speed, super high-speed bearings with ceramic ball and etc.
Material properties of ceramic material:
All the data is based on our own experiments.
| Material Properties | Units | SSiC | HIP-Si3N4 | GPS-Si3N4 | HIP-ZrO2 |
| Density | g/cm3 | 3.15-3.18 | 3.27-3.29 | 3.22-3.27 | 6.05-6.09 |
| Porosity | % | 0 | 0 | 0 | 0 |
| Fledural Strength | MPa | 550 | 830 | 689 | 900 |
| Elastic Modulus | GPa | 410 | 310 | 310 | 200 |
| Hardness | HV5 | 2800 | 1580 | 1450 | 1300 |
| Fracture Toughness KIC | MPa.m1/2 | 4.6 | 6.1 | 5.7 | 8-11 |
| Maximum Use Temperature | ℃ | 1650 | 1000 | 1000 | 380 |
Reference data of Ceramic Angular Contact Balls Bearings:
| Bearings model | Form size d (mm) | Form size D (mm) | Form size B (mm) | Load | Load Cor (N) | Max.Speed Grease (rpm) | Max. Speed Oil (rpm) |
| 7200CE | 10 | 30 | 9 | 4860 | 2640 | 53300 | 71500 |
| 7201CE | 12 | 32 | 10 | 6390 | 3450 | 46800 | 63700 |
| 7202CE | 15 | 35 | 11 | 8100 | 4500 | 41600 | 54600 |
| 7203CE | 17 | 40 | 12 | 10080 | 5750 | 37700 | 49400 |
| 7204CE | 20 | 47 | 14 | 13140 | 8150 | 32500 | 44200 |
| 7205CE | 25 | 52 | 15 | 14940 | 10200 | 27300 | 36400 |
| 7206CE | 30 | 62 | 16 | 20700 | 14700 | 23400 | 31200 |
| 7207CE | 35 | 72 | 17 | 27450 | 19900 | 20800 | 27300 |
| 7208CE | 40 | 80 | 18 | 32850 | 25200 | 18200 | 24700 |
| 7209CE | 45 | 85 | 19 | 36900 | 28800 | 16900 | 22100 |
| 7210CE | 50 | 90 | 20 | 38700 | 31500 | 15600 | 19500 |
| 7211CE | 55 | 100 | 21 | 47700 | 40000 | 14300 | 18200 |
| 7212CE | 60 | 110 | 22 | 57600 | 49500 | 12610 | 16900 |
| 7213CE | 65 | 120 | 23 | 63000 | 55000 | 11700 | 15600 |
| 7214CE | 70 | 125 | 24 | 68400 | 60000 | 10790 | 14300 |
| 7215CE | 75 | 130 | 25 | 71550 | 65500 | 10140 | 13000 |
| 7216CE | 80 | 140 | 26 | 83700 | 77500 | 9490 | 12610 |
| 7217CE | 85 | 150 | 28 | 93600 | 90500 | 8970 | 11830 |
