Bearings, units and housings -- Super-precision bearings -- Angular contact thrust ball bearings for screw drives -- Angular contact thrust ball bearings for screw drives, cartridge units with a flanged housing, super-precision -- SKF FBSA 204/DF
FBSA 204/DF
Dimensions
| d | 20 | mm | |
| H | 90 | mm | |
| A | 47 | mm | |
| A1 | 43.24 | mm | |
| A2 | 32 | mm | |
| A3 | 13 | mm | |
| d1 | 26 | mm | |
| D1 | 64 | mm | |
| D2 | 60 | mm | |
| D3 | 36 | mm |
Calculation data
| Basic dynamic load rating | C | 22 | kN | |
| Basic static load rating | C0 | 49 | kN | |
| Fatigue load limit | Pu | 1.8 | kN | |
| Attainable speed for preload class A | 7600 | r/min | ||
| Attainable speed for preload class B | 3800 | r/min | ||
| Preload class A | 1480 | kN | ||
| Preload class B | 2960 | kN | ||
| Frictional moment for preload class A | 0.05 | N·m | ||
| Frictional moment for preload class B | 0.091 | N·m | ||
| Static axial stiffnes for preload class A | 680 | N/µm | ||
| Static axial stiffnes for preload class B | 860 | N/µm |
Mass
| Mass cartridge unit | 1.1 | kg |
Mounting information
| Through hole diameter for attachment bolts | N | 6.6 | mm | |
| Pitch diameter of attachement bolt holes | J | 76 | mm | |
| Cartridge half diameter without flange | J1 | 32 | mm |