Beijing Zhongxing Shiqiang CERAMIC BEARING Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 50 pcs in 30-40 work days |
| Delivery Time | 30-40 work days |
| Packaging Details | Plastik bag+foam+carton box |
| Name | 6903Ce Bearing |
| Material | Si3N4 races and balls+ cage |
| Structure | Deep groove bearing with extra thin type |
| Precision | P6/ABEC3 |
| Size | 6903: 17×30×7mm |
| Ball | Si3N4 balls of 3.969mm |
| Pacage | Plastik bag+foam+carton box |
| MOQ | 50 pieces |
| Brand Name | CSQ |
| Model Number | 6903(61903CE) |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 50 pcs in 30-40 work days |
| Delivery Time | 30-40 work days | Packaging Details | Plastik bag+foam+carton box |
| Name | 6903Ce Bearing | Material | Si3N4 races and balls+ cage |
| Structure | Deep groove bearing with extra thin type | Precision | P6/ABEC3 |
| Size | 6903: 17×30×7mm | Ball | Si3N4 balls of 3.969mm |
| Pacage | Plastik bag+foam+carton box | MOQ | 50 pieces |
| Brand Name | CSQ | Model Number | 6903(61903CE) |
| Place of Origin | China | ||
| High Light | 6903 bearing ceramic ，bearing 6903 ceramic ，61903-2rs ceramic bearing | ||
6903Ce Bearing Of Si3N4 Races And Balls + Cage With P6/ABEC3 Precision
Description of 6903Ce Bearing:
1. Si3N4 races and balls: Are made of highly purified, submicron silicon nitride powder with an alpha phase of more than 92%, and is processed after HIP (Hot Isostatic Pressure) sintering technology. So the porosity, wear resistance, crushing value and fatigue contact life have been greatly improved.
2. cage: has resistance to many kinds of acid and alkali and high temperature resistance and its melting point is 327℃,so it can work in many situation as bearing cage.
Application of 6903Ce Bearing:
Silicon nitride bearings are suitable for high-speed, alternating load environment, so are usually use ashigh-speed spindle, electric spindle, CNC machine tool and motorized spindle bearings.
| Ceramic | Bearings | Dimension | Reference | |
| Bearings Model | Load Rating (Ref.) | Load Rating (Ref.) | Max Speed (Ref.) | Max Speed (Ref.) |
| Cr(N) | Cor(N) | Grease (rpm) | Oil (rpm) | |
| 61903CE | 3450 | 2550 | 24000 | 31900 |
| ► Key properties of hot isostatic sintered silicon nitride |
| ♦ Max temperature to 1000℃ |
| ♦ High strength over a wide temperature range |
| ♦ High fracture toughness: 6.1 MPa-m1/2 |
| ♦ High hardness: 1580 HV5 |
| ♦ Outstanding wear resistance, both impingement and frictional modes |
| ♦ Good thermal shock resistance |
| ♦ Good chemical stability,resistance to acid and alkali corrosion |
| ♦ Good electric insulation |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2005
Total Annual:
3000000-5000000
Employee Number:
160~200
Ecer Certification：
Verified Supplier
Beijing Zhongxing Shiqiang Ceramic Bearing Co., Ltd., founded in 2005, situated in No. A38 Weishanzhuang Industry District, Daxing District ,Beijing, is the first company in China to invent and manufacture rare-earth ceramic bearings. The rare-earth ceramic bearings have characteristics of st... Beijing Zhongxing Shiqiang Ceramic Bearing Co., Ltd., founded in 2005, situated in No. A38 Weishanzhuang Industry District, Daxing District ,Beijing, is the first company in China to invent and manufacture rare-earth ceramic bearings. The rare-earth ceramic bearings have characteristics of st...
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