d | 70 | mm | |
D | 90 | mm | |
B | 10 | mm | |
d1 | 76.7 | mm | |
d2 | 76.7 | mm | |
D1 | 83.5 | mm | |
r1,2 | min. | 0.6 | mm |
r3,4 | min. | 0.3 | mm |
a | 15.7 | mm |
da | min. | 73.2 | mm |
db | min. | 73.2 | mm |
Da | max. | 86.8 | mm |
Db | max. | 88 | mm |
ra | max. | 0.6 | mm |
rb | max. | 0.3 | mm |
dn | 77.4 | mm |
Basic dynamic load rating | C | 13.8 | kN | |
Basic static load rating | C0 | 16 | kN | |
Fatigue load limit | Pu | 0.67 | kN | |
Attainable speed for grease lubrication | 14000 | r/min | ||
Attainable speed for oil-air lubrication | 22000 | r/min | ||
Contact angle | α | 15 | ° | |
Ball diameter | Dw | 5.556 | mm | |
Number of balls | z | 31 | ||
Reference grease quantity | Gref | 1.4 | cm³ | |
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 73 | N | |
Static axial stiffness, preload class A | 65 | N/µm | ||
Preload class B | GB | 220 | N | |
Static axial stiffness, preload class B | 112 | N/µm | ||
Preload class C | GC | 440 | N | |
Static axial stiffness, preload class C | 166 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.32 | ||
Calculation factor | f1 | 1 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | f2B | 1.09 | ||
Calculation factor | f2C | 1.16 | ||
Calculation factor | fHC | 1 | ||
Calculation factor | f0 | 17.2 |
Mass bearing | 0.13 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ