Beijing Zhongxing Shiqiang CERAMIC BEARING Co., Ltd.
Beijing Zhongxing Shiqiang Ceramic Bearing Co.,Ltd
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ZrO2 or Si3N4 Double-Row Cylindrical Roller Bearings
Description of Ceramic Double-row Cylindrical Roller Bearings:
Our company, as one of the most professional ceramic bearing manufacturer in China, can also produce ceramic double-row cylindrical roller bearings. The material of races and rollers can be chosen among Si3N4 (silicon nitride), SSiC (silicon carbide) or ZrO2 (zirconia) and fitted with cage in material of PEEK, or PFA according to your requirement. Welcome your inquiry.
| 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 Double-row Cylindrical Roller Bearings
| Bearings model | Form size | Form size | Form size | Load | Load | Max.Speed | Max. Speed |
| NN3005CE | 25 | 47 | 16 | 25800 | 30000 | 15000 | 17000 |
| nn 3006 bearingCE | 30 | 55 | 19 | 31000 | 37000 | 12000 | 15000 |
| NNnn 3012 bearingCE | 35 | 62 | 20 | 39500 | 50000 | 11000 | 13000 |
| NN3008CE | 40 | 68 | 21 | 43500 | 55500 | 9800 | 11100 |
| NN3009CE | 45 | 75 | 23 | 52000 | 68500 | 8800 | 10000 |
| NN3010CE | 50 | 80 | 23 | 53000 | 72500 | 8200 | 9600 |
| NN3011CE | 55 | 90 | 26 | 69500 | 96500 | 7300 | 8600 |
| NN3012CE | 60 | 95 | 26 | 73500 | 106000 | 6800 | 8000 |
| NN3013CE | 65 | 100 | 26 | 77000 | 116000 | 6400 | 7600 |
| NN3014CE | 70 | 110 | 30 | 97500 | 148000 | 5700 | 6800 |
| NN3015CE | 75 | 115 | 30 | 96500 | 149000 | 5500 | 6400 |
| NN3016CE | 80 | 125 | 34 | 119000 | 186000 | 5000 | 6000 |
| NN3017CE | 85 | 130 | 34 | 125000 | 201000 | 4800 | 5600 |
| NN3018CE | 90 | 140 | 37 | 143000 | 228000 | 4500 | 5200 |
| NN3019CE | 95 | 145 | 37 | 150000 | 246000 | 4300 | 5000 |
| NN3020CE | 100 | 150 | 37 | 157000 | 265000 | 4000 | 4800 |
| NN3021CE | 105 | 160 | 41 | 198000 | 320000 | 3800 | 4500 |
| NN3022CE | 110 | 170 | 45 | 229000 | 375000 | 3600 | 4300 |
| NN3024CE | 120 | 180 | 46 | 239000 | 405000 | 3300 | 3900 |
| NN3026CE | 130 | 200 | 52 | 284000 | 475000 | 3000 | 3600 |
| NN3028CE | 140 | 210 | 53 | 298000 | 515000 | 2800 | 3400 |
| NN3030CE | 150 | 225 | 56 | 335000 | 585000 | 2600 | 3100 |
