21308MB,21308MBK
Double-row spherical roller be | 2019-12-03 11:43
| Main dimensions | |||
| d | mm | ||
| D | 90 | mm | |
| B | 23 | mm | |
| r( minimum) | 1.5 | mm | |
| basic load rating | |||
| Cr | 83.5 | kN | |
| C0r | 90.6 | kN | |
| limit speed | |||
| Grease lubrication | 4500 | min-1 | |
| oil lubrication | 6100 | min-1 | |
| Nominal model | |||
| Cylindrical hole | 21308MB | ||
| Conical hole | 21308MBK | min-1 | |
| Installation related dimensions | |||
| da(minimum) | 48.5 | mm | |
| Da(maximum) | 81.5 | mm | |
| ra(maximum) | 1.5 | mm | |
| constant | |||
| e | 0.26 | ||
| Axial load factor | |||
| Y1 | 2.6 | mm | |
| Y2 | 3.87 | mm | |
| Y0 | 2.54 | mm | |
| reference quality | |||
| Cylindrical hole | 0.71 | kg | |
| Conical hole | 0.699 | kg | |
