d | 20 | mm | |
D | 42 | mm | |
B | 12 | mm | |
d1 | 27.1 | mm | |
d2 | 27.1 | mm | |
D1 | 34.8 | mm | |
r1,2 | min. | 0.6 | mm |
r3,4 | min. | 0.3 | mm |
a | 13.3 | mm |
da | min. | 23.2 | mm |
db | min. | 23.2 | mm |
Da | max. | 38.8 | mm |
Db | max. | 40 | mm |
ra | max. | 0.6 | mm |
rb | max. | 0.3 | mm |
dn | 28.4 | mm |
Basic dynamic load rating | C | 8.32 | kN | |
Basic static load rating | C0 | 4.15 | kN | |
Fatigue load limit | Pu | 0.173 | kN | |
Attainable speed for grease lubrication | 45000 | r/min | ||
Attainable speed for oil-air lubrication | 70000 | r/min | ||
Contact angle | α | 25 | ° | |
Ball diameter | Dw | 6.35 | mm | |
Number of balls | z | 12 | ||
Reference grease quantity | Gref | 0.9 | cm³ | |
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 50 | N | |
Static axial stiffness, preload class A | 60 | N/µm | ||
Preload class B | GB | 100 | N | |
Static axial stiffness, preload class B | 77 | N/µm | ||
Preload class C | GC | 200 | N | |
Static axial stiffness, preload class C | 100 | N/µm | ||
Preload class D | GD | 400 | N | |
Static axial stiffness, preload class D | 133 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.03 | ||
Calculation factor | f1 | 0.99 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | f2B | 1.02 | ||
Calculation factor | f2C | 1.05 | ||
Calculation factor | f2D | 1.08 | ||
Calculation factor | fHC | 1.02 | ||
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 | 0.06 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ