d | 50 | mm | |
D | 80 | mm | |
B | 16 | mm | |
d1 | 61.44 | mm | |
d2 | 59.65 | mm | |
D2 | 70.7 | mm | |
r1,2 | min. | 1 | mm |
r3,4 | min. | 0.6 | mm |
a | 23.2 | mm |
da | min. | 54.6 | mm |
da | max. | 60.8 | mm |
db | min. | 54.6 | mm |
db | max. | 59.1 | mm |
Da | max. | 75.4 | mm |
Db | max. | 76.8 | mm |
ra | max. | 1 | mm |
rb | max. | 0.6 | mm |
Basic dynamic load rating | C | 12.5 | kN | |
Basic static load rating | C0 | 12.2 | kN | |
Fatigue load limit | Pu | 0.31 | kN | |
Attainable speed for grease lubrication | 26000 | r/min | ||
Contact angle | α | 25 | ° | |
Ball diameter | Dw | 5.556 | mm | |
Number of balls | z | 27 | ||
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 56 | N | |
Static axial stiffness, preload class A | 97 | N/µm | ||
Preload class B | GB | 110 | N | |
Static axial stiffness, preload class B | 122 | N/µm | ||
Preload class C | GC | 330 | N | |
Static axial stiffness, preload class C | 183 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.06 | ||
Calculation factor | f1 | 0.99 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | f2B | 1.02 | ||
Calculation factor | f2C | 1.05 | ||
Calculation factor | fHC | 1.01 | ||
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 | 0.28 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ