d | 55 | mm | |
D | 80 | mm | |
B | 13 | mm | |
d1 | 63.94 | mm | |
d2 | 62.7 | mm | |
D2 | 73.2 | mm | |
r1,2 | min. | 1 | mm |
r3,4 | min. | 0.3 | mm |
a | 18.8 | mm |
da | min. | 59.6 | mm |
db | min. | 59.6 | mm |
Da | max. | 75.4 | mm |
Db | max. | 78 | mm |
ra | max. | 1 | mm |
rb | max. | 0.3 | mm |
dn | 64.8 | mm |
Basic dynamic load rating | C | 13.5 | kN | |
Basic static load rating | C0 | 13.7 | kN | |
Fatigue load limit | Pu | 0.345 | kN | |
Attainable speed for grease lubrication | 22000 | r/min | ||
Attainable speed for oil-air lubrication | 34000 | r/min | ||
Contact angle | α | 15 | ° | |
Ball diameter | Dw | 5.556 | mm | |
Number of balls | z | 28 | ||
Reference grease quantity | Gref | 2.58 | cm³ | |
Preload and stiffness (back-to-back, face-to-face) | ||||
Preload class A | GA | 33 | N | |
Static axial stiffness, preload class A | 34 | N/µm | ||
Preload class B | GB | 66 | N | |
Static axial stiffness, preload class B | 45 | N/µm | ||
Preload class C | GC | 200 | N | |
Static axial stiffness, preload class C | 73 | N/µm | ||
Calculation factors | ||||
Calculation factor | f | 1.09 | ||
Calculation factor | f1 | 1 | ||
Calculation factor | f2A | 1 | ||
Calculation factor | f2B | 1.02 | ||
Calculation factor | f2C | 1.07 | ||
Calculation factor | fHC | 1 | ||
Calculation factor | f0 | 9.8 |
Mass bearing | 0.18 | kg |
Chúng tôi đảm bảo cung cấp hàng chính hãng SKF đầy đủ CO, CQ