d | 240 | mm | |
D | 320 | mm | |
B | 38 | mm | |
d1 | 264.7 | mm | |
d2 | 264.7 | mm | |
D1 | 295.3 | mm | |
r1,2 | min. | 2.1 | mm |
r3,4 | min. | 1 | mm |
a | 84.5 | mm |
da | min. | 251 | mm |
db | min. | 251 | mm |
Da | max. | 309 | mm |
Db | max. | 315 | mm |
ra | max. | 2 | mm |
rb | max. | 1 | mm |
dn | 271.4 | mm |
Basic dynamic load rating | C | 216 | kN | |
Basic static load rating | C0 | 305 | kN | |
Fatigue load limit | Pu | 7.8 | kN | |
Attainable speed for grease lubrication | 3800 | r/min | ||
Attainable speed for oil-air lubrication | 5600 | r/min | ||
Contact angle | α | 25 | ° | |
Ball diameter | Dw | 25.4 | mm | |
Number of balls | z | 31 | ||
Reference grease quantity | Gref | 93 | cm³ | |
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 1350 | N | |
Static axial stiffness, preload class A | 648 | N/µm | ||
Preload class B | GB | 2700 | N | |
Static axial stiffness, preload class B | 851 | N/µm | ||
Preload class C | GC | 5400 | N | |
Static axial stiffness, preload class C | 1142 | N/µm | ||
Preload class D | GD | 10800 | N | |
Static axial stiffness, preload class D | 1568 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.32 | ||
Calculation factor | f1 | 0.98 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | f2B | 1.07 | ||
Calculation factor | f2C | 1.12 | ||
Calculation factor | f2D | 1.17 | ||
Calculation factor | fHC | 1.04 | ||
Calculation factor | e | 0.68 | ||
Calculation factor (single, tandem) | Y2 | 0.87 | ||
Calculation factor (single, tandem) | Y0 | 0.38 | ||
Calculation factor (single, tandem) | X2 | 0.41 | ||
Calculation factor (back-to-back, face-to-face) | Y1 | 0.92 | ||
Calculation factor (back-to-back, face-to-face) | Y2 | 1.41 | ||
Calculation factor (back-to-back, face-to-face) | Y0 | 0.76 | ||
Calculation factor (back-to-back, face-to-face) | X2 | 0.67 |
Mass bearing | 5.98 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ