NSK 240/670CAE4 bearing Size Chart (mm/inches) |
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d | 60 mm |
D | 95 mm |
B | 18 mm |
d1 | 72.74 mm |
d2 | 70.6 mm |
D1 | 82.22 mm |
K | 0.5 mm |
C1 | 6.3 mm |
r1,2 min. | 1.1 mm |
r3,4 min. | 0.6 mm |
a | 27.3 mm |
da min. | 66 mm |
db min. | 66 mm |
Da max. | 89 mm |
Db max. | 90.8 mm |
ra max. | 1 mm |
rb max. | 0.6 mm |
dn | 74.6 mm |
Basic dynamic load rating C | 16.3 kN |
Basic static load rating C0 | 12.2 kN |
Fatigue load limit Pu | 0.52 kN |
Attainable speed for grease lubrication | 22000 r/min |
Attainable speed for oil-air lubrication | 33000 r/min |
Ball diameter Dw | 7.938 mm |
Number of balls z | 25 |
Reference grease quantity Gref | 5.3 cm³ |
Preload class A GA | 150 N |
Static axial stiffness, preload class A | 135 N/µm |
Preload class B GB | 440 N |
Static axial stiffness, preload class B | 200 N/µm |
Preload class C GC | 870 N |
Static axial stiffness, preload class C | 260 N/µm |
Calculation factor f | 1.08 |
Calculation factor f1 | 0.99 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.03 |
Calculation factor f2C | 1.06 |
Calculation factor fHC | 1.01 |
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 | 0.39 kg |