Beijing Zhongxing Shiqiang CERAMIC BEARING Co., Ltd.
Beijing Zhongxing Shiqiang Ceramic Bearing Co.,Ltd
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Miniature ceramic deep groove balls bearings of ZrO2/Si3N4/SSiC
Description of Miniature Ceramic Deep Groove Balls Bearings:
Our company, as one of the most professional ceramic bearing manufacturer in China, can produce many kinds of ceramic bearings. Now we are mostly speciallizing in the automatic production of 608 ceramic 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, Teflon or PFA and seals in material of PEEK,Teflon and Rubber. Our main product is 608 Ce in material of ZrO2 races and balls+ PEEK cage (and seals). 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 (3000) | 1000 (1830) | 1000 (1830) | 380 (716) |
Reference data of Miniature Ceramic Deep Groove Balls Bearings:
| Bearings model | Form size d (mm) | Form size D (mm) | Form size B (mm) | Load Cr (N) | Load Cor (N) | Max.Speed Grease (rpm) | Max. Speed Oil (rpm) |
| 684CE | 4 | 9 | 2.5 | 564 | 227 | 53000 | 63000 |
| 694CE | 4 | 11 | 4 | 842 | 350 | 48000 | 56000 |
| 604CE | 4 | 12 | 4 | 842 | 350 | 48000 | 56000 |
| 624CE | 4 | 13 | 5 | 1145 | 488 | 40000 | 48000 |
| 634CE | 4 | 16 | 5 | 1179 | 523 | 36000 | 43000 |
| 685CE | 5 | 11 | 3 | 630 | 282 | 45000 | 53000 |
| 695CE | 5 | 13 | 4 | 948 | 432 | 43000 | 50000 |
| 605CE | 5 | 14 | 5 | 1170 | 507 | 40000 | 50000 |
| 625CE | 5 | 16 | 5 | 1522 | 675 | 36000 | 43000 |
| 635CE | 5 | 19 | 6 | 2056 | 896 | 32000 | 40000 |
| 686CE | 6 | 13 | 3.5 | 952 | 442 | 40000 | 50000 |
| 696CE | 6 | 15 | 5 | 1179 | 523 | 40000 | 45000 |
| 606CE | 6 | 17 | 6 | 1991 | 846 | 38000 | 45000 |
| 626CE | 6 | 19 | 6 | 2056 | 896 | 32000 | 40000 |
| 636CE | 6 | 22 | 7 | 2930 | 1423 | 30000 | 36000 |
| 687CE | 7 | 14 | 3.5 | 1032 | 513 | 40000 | 50000 |
| 697CE | 7 | 17 | 5 | 1412 | 719 | 36000 | 43000 |
| 607CE | 7 | 19 | 6 | 2056 | 896 | 36000 | 43000 |
| 627CE | 7 | 22 | 7 | 2893 | 1379 | 30000 | 36000 |
| 637CE | 7 | 26 | 9 | 4015 | 1983 | 28000 | 34000 |
| 688CE | 8 | 16 | 4 | 1102 | 592 | 36000 | 43000 |
| 698CE | 8 | 19 | 6 | 1969 | 917 | 36000 | 43000 |
| 608CE | 8 | 22 | 7 | 2898 | 1379 | 34000 | 40000 |
| 628CE | 8 | 24 | 8 | 2930 | 1423 | 28000 | 34000 |
| 638CE | 8 | 28 | 9 | 4015 | 1983 | 28000 | 34000 |
| 689CE | 9 | 17 | 4 | 1168 | 668 | 36000 | 43000 |
| 699CE | 9 | 20 | 6 | 2171 | 1081 | 34000 | 40000 |
| 609CE | 9 | 24 | 7 | 2953 | 1444 | 32000 | 38000 |
| 629CE | 9 | 26 | 8 | 4026 | 1983 | 28000 | 34000 |
| 639CE | 9 | 30 | 10 | 4100 | 2080 | 24000 | 30000 |
