NSK R440-3 cylindrical roller bearings

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Size (mm) | 90x115x13 |
Bore Diameter (mm) | 90 |
Outer Diameter (mm) | 115 |
Width (mm) | 13 |
d | 90 mm |
D | 115 mm |
B | 13 mm |
C | 13 mm |
d1 | 98.2 mm |
d2 | 98.2 mm |
r1 min. | 1 mm |
r2 min. | 1 mm |
r3 min. | 0,3 mm |
r4 min. | 0,3 mm |
D1 | 107.1 mm |
D2 | – mm |
da min. | 94.6 mm |
Da max. | 110.4 mm |
db min | 94,6 mm |
ra max. | 1 mm |
rb max. | 0.3 mm |
dh | 99,1 mm |
Db max | 113 mm |
Weight | 0,25 Kg |
Basic dynamic load rating (C) | 20,3 kN |
Basic static load rating (C0) | 25 kN |
(Grease) Lubrication Speed | 12 000 r/min |
(Oil) Lubrication Speed | 18 000 r/min |
Fatigue load limit (Pu) | 1,04 |
r1,2 min. | 1 mm |
r3,4 min. | 0.3 mm |
a | 30.5 mm |
db min. | 94.6 mm |
Db max. | 113 mm |
dn | 99.1 mm |
Basic dynamic load rating C | 20.3 kN |
Basic static load rating C0 | 25 kN |
Fatigue load limit Pu | 1.04 kN |
Attainable speed for grease lubrication | 12000 r/min |
Attainable speed for oil-air lubrication | 18000 r/min |
Ball diameter Dw | 7.144 mm |
Number of balls z | 31 |
Reference grease quantity Gref | 2.9 cm³ |
Preload class A GA | 184 N |
Static axial stiffness, preload class A | 215 N/µm |
Preload class B GB | 555 N |
Static axial stiffness, preload class B | 340 N/µm |
Preload class C GC | 1110 N |
Static axial stiffness, preload class C | 467 N/µm |
Calculation factor f | 1.33 |
Calculation factor f1 | 0.97 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.09 |
Calculation factor f2C | 1.17 |
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 | 0.25 kg |
Detailed Parameters
parameter:
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