d | 9 | mm | |
D | 20 | mm | |
B | 6 | mm | |
d1 | 12.5 | mm | |
d2 | 11.76 | mm | |
D1 | 16.52 | mm | |
r1,2 | min. | 0.3 | mm |
r3,4 | min. | 0.15 | mm |
a | 5.2 | mm |
da | min. | 11 | mm |
db | min. | 11 | mm |
Da | max. | 18 | mm |
Db | max. | 19.2 | mm |
ra | max. | 0.3 | mm |
rb | max. | 0.15 | mm |
dn | 13.3 | mm |
Basic dynamic load rating | C | 2.03 | kN | |
Basic static load rating | C0 | 0.8 | kN | |
Fatigue load limit | Pu | 0.034 | kN | |
Attainable speed for grease lubrication | 109000 | r/min | ||
Attainable speed for oil-air lubrication | 165000 | r/min | ||
Contact angle | α | 15 | ° | |
Ball diameter | Dw | 3.175 | mm | |
Number of balls | z | 11 | ||
Reference grease quantity | Gref | 0.09 | cm³ | |
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 11 | N | |
Static axial stiffness, preload class A | 10 | N/µm | ||
Preload class B | GB | 32 | N | |
Static axial stiffness, preload class B | 16 | N/µm | ||
Preload class C | GC | 64 | N | |
Static axial stiffness, preload class C | 21 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.03 | ||
Calculation factor | f1 | 1 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | f2B | 1.04 | ||
Calculation factor | f2C | 1.08 | ||
Calculation factor | fHC | 1 | ||
Calculation factor | f0 | 7.4 |
Mass bearing | 0.008 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ