d | 50 | mm | |
D | 72 | mm | |
B | 12 | mm | |
d1 | 57.1 | mm | |
d2 | 57.1 | mm | |
D1 | 64.9 | mm | |
r1,2 | min. | 0.6 | mm |
r3,4 | min. | 0.3 | mm |
a | 20.3 | mm |
da | min. | 53.2 | mm |
db | min. | 53.2 | mm |
Da | max. | 68.8 | mm |
Db | max. | 70.6 | mm |
ra | max. | 0.6 | mm |
rb | max. | 0.3 | mm |
Basic dynamic load rating | C | 12.7 | kN | |
Basic static load rating | C0 | 9.8 | kN | |
Fatigue load limit | Pu | 0.415 | kN | |
Attainable speed for grease lubrication | 16000 | r/min | ||
Contact angle | α | 25 | ° | |
Ball diameter | Dw | 6.35 | mm | |
Number of balls | z | 25 | ||
Reference grease quantity | Gref | 1.74 | cm³ | |
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 80 | N | |
Static axial stiffness, preload class A | 105 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.13 | ||
Calculation factor | f1 | 0.98 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | fHC | 1 | ||
Calculation factor | e | 0.68 | ||
Calculation factor (single, tandem) | Y2 | 0.87 | ||
Calculation factor (back-to-back, face-to-face) | Y1 | 0.92 | ||
Calculation factor (back-to-back, face-to-face) | Y2 | 1.41 |
Mass bearing | 0.13 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ