Beijing Zhongxing Shiqiang CERAMIC BEARING Co., Ltd.
Beijing Zhongxing Shiqiang Ceramic Bearing Co.,Ltd
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61800 Series Extra Thin Type Ceramic Balls Bearings In Material Of Si3N4/SSiC/ZrO2
Description of Extra Thin Type Ceramic Deep Groove Bearings:
The material of races and balls can be chosen among silicon nitride, silicon carbide and zirconia. SSiC material has best corrosion resistance, Si3N4 material is the most light and has excellent magnetic and electrical insulation, ZrO2 material has the best wear resistance.
Material properties of our ceramic material:
| 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 Extra Thin Type Ceramic Deep Groove 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) |
| 61800CE | 10 | 19 | 5 | 1590 | 985 | 37000 | 48400 |
| 61801CE | 12 | 21 | 5 | 1440 | 1040 | 32000 | 42900 |
| 61802CE | 15 | 24 | 5 | 1560 | 1260 | 28000 | 37400 |
| 61803CE | 17 | 26 | 5 | 1973 | 1570 | 26000 | 33000 |
| 61804CE | 20 | 32 | 7 | 3000 | 2640 | 22000 | 28600 |
| 61805CE | 25 | 37 | 7 | 3225 | 2940 | 18000 | 24200 |
| 61806CE | 30 | 42 | 7 | 4013 | 3800 | 15000 | 19800 |
| 61807CE | 35 | 47 | 7 | 3563 | 3800 | 14000 | 17600 |
| 61808CE | 40 | 52 | 7 | 4463 | 4900 | 12000 | 15400 |
| 61809CE | 45 | 58 | 7 | 4013 | 4900 | 11000 | 14300 |
| 61810CE | 50 | 65 | 7 | 4800 | 5800 | 10000 | 13200 |
| 61811CE | 55 | 72 | 9 | 6600 | 8100 | 8700 | 11000 |
| 61812CE | 60 | 78 | 10 | 8625 | 10600 | 8000 | 10450 |
| 61813CE | 65 | 85 | 10 | 8925 | 11500 | 7500 | 9570 |
| 61814CE | 70 | 90 | 10 | 9075 | 11900 | 7000 | 8910 |
| 61815CE | 75 | 95 | 10 | 9375 | 12800 | 6500 | 8360 |
| 61816CE | 80 | 100 | 10 | 9525 | 13300 | 6000 | 7810 |
| 61817CE | 85 | 110 | 13 | 14025 | 19000 | 5700 | 7370 |
| 61818CE | 90 | 115 | 13 | 14250 | 19700 | 5400 | 6930 |
| 61819CE | 95 | 120 | 13 | 14475 | 20500 | 5000 | 6600 |
| 61820CE | 100 | 125 | 13 | 14700 | 21200 | 4800 | 6160 |
| 61821CE | 105 | 130 | 13 | 14925 | 21900 | 4800 | 6160 |
| 61822CE | 110 | 140 | 16 | 20475 | 29400 | 4300 | 5830 |
| 61824CE | 120 | 150 | 16 | 21225 | 31500 | 4000 | 5280 |
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. Our company has our professional material recipe advantage, design and research and development ability, welcome your inquiry.
