SKF QJ 312N2MA 四点角接触轴承 天津SKF特约销售处

QJ 312 N2MASKF Explorer
Dimensions

|
| d | | 60 | mm |
| D | | 130 | mm |
| B | | 31 | mm |
| d1 | ≈ | 77 | mm |
| D1 | ≈ | 106 | mm |
| a | | 67 | mm |
| h | | 8.1 | mm |
| b | | 6.5 | mm |
| r0 | | 1 | mm |
| r1,2 | min. | 2.1 | mm |
Abutment dimensions

|
| da | min. | 72 | mm |
| Da | max. | 118 | mm |
| ra | max. | 2 | mm |
Calculation data
| Basic dynamic load rating | C | | 156 | kN |
| Basic static load rating | C0 | | 137 | kN |
| Fatigue load limit | Pu | | 5.8 | kN |
| Reference speed | | | 6700 | r/min |
| Limiting speed | | | 9000 | r/min |
| Calculation factor | ka | | 1.1 | |
| Calculation factor | e | | 0.95 | |
| Calculation factor | X | | 0.6 | |
| Calculation factor | Y0 | | 0.58 | |
| Calculation factor | Y1 | | 0.66 | |
| Calculation factor | Y2 | | 1.07 | |
Mass
| Mass bearing | | | 2.15 | kg

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