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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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61900 Series Extra Thin Type Ceramic Balls Bearings In Material Of Si3N4/SSiC/ZrO2
Why choose us:
At present, our company mainly produces high-performance ceramic material products in materials of Si3N4, SSiC, ZrO2, Al2O3 and etc. The main business products cover various ceramic rolling bearings and ceramic balls,
Material properties of ceramic materials:
All the data of ceramic material properties are based on our owm
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 6900 Series Extra Thin Type Ceramic 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) |
| 61900CE | 10 | 22 | 6 | 1868 | 1130 | 33000 | 41800 |
| 61901CE | 12 | 24 | 6 | 2025 | 1320 | 30000 | 39600 |
| 61902CE | 15 | 28 | 7 | 3225 | 2250 | 26000 | 34100 |
| 61903CE | 17 | 30 | 7 | 3450 | 2550 | 24000 | 31900 |
| 61904CE | 20 | 37 | 9 | 4763 | 3700 | 19000 | 25300 |
| 61905CE | 25 | 42 | 9 | 5250 | 4500 | 16000 | 22000 |
| 61906CE | 30 | 47 | 9 | 5438 | 5000 | 14000 | 18700 |
| 61907CE | 35 | 55 | 10 | 7800 | 7150 | 12000 | 16500 |
| 61908CE | 40 | 62 | 12 | 10275 | 9950 | 11000 | 14300 |
| 61909CE | 45 | 68 | 12 | 10575 | 10900 | 10000 | 13200 |
| 61910CE | 50 | 72 | 12 | 10875 | 11700 | 9500 | 12100 |
| 61911CE | 55 | 80 | 13 | 12000 | 13200 | 8200 | 10560 |
| 61912CE | 60 | 85 | 13 | 11400 | 13500 | 7600 | 9900 |
| 61913CE | 65 | 90 | 13 | 13050 | 16000 | 7100 | 9350 |
| 61914CE | 70 | 100 | 16 | 17775 | 21100 | 6500 | 8470 |
| 61915CE | 75 | 105 | 16 | 15600 | 19700 | 6200 | 7920 |
| 61916CE | 80 | 110 | 16 | 20700 | 25300 | 5700 | 7370 |
| 61917CE | 85 | 120 | 18 | 24000 | 29600 | 5400 | 6930 |
| 61918CE | 90 | 125 | 18 | 24750 | 31500 | 5100 | 6600 |
| 61919CE | 95 | 130 | 18 | 25125 | 33500 | 4800 | 6270 |
| 61920CE | 100 | 140 | 20 | 31875 | 36500 | 4500 | 5830 |
| 61921CE | 105 | 145 | 20 | 31875 | 42000 | 4300 | 5830 |
| 61922CE | 110 | 150 | 20 | 28500 | 38500 | 4300 | 5500 |
