NTN 51205J Ball Bearings -

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NTN 51205J Ball Bearings image

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Produktinformation

Bearing number:7009 ACB/P4AL
Size (mm):75x45x16
Bore Diameter (mm):75
Outer Diameter (mm):45
Width (mm):16
d:45 mm
D:75 mm
B:16 mm
d1:56.44 mm
d2:55.17 mm
D2:65.58 mm
b:1.5 mm
C1:8.6 mm
C2:3.6 mm
C3:2.6 mm
r1,2 - min.:1 mm
r3,4 - min.:0.6 mm
a:22.1 mm
da - min.:49.6 mm
db - min.:49.6 mm
Da - max.:70.4 mm
Db - max.:71.8 mm
ra - max.:1 mm
rb - max.:0.6 mm
dn:57.2 mm
Basic dynamic load rating - C:9 kN
Basic static load rating - C0:6.8 kN
Fatigue load limit - Pu:0.285 kN
Limiting speed for grease lubrication:24000 r/min
Limiting speed for oil lubrication:36000 mm/min
Ball - Dw:5.556 mm
Ball - z:25
Gref:2.93 cm3
Calculation factor - e:0.68
Calculation factor - Y2:1.41
Calculation factor - Y0:0.76
Calculation factor - X2:0.67
Calculation factor - Y1:0.92
Preload class A - GA:54 N
Preload class B - GB:110 N
Preload class C - GC:330 N
Calculation factor - f:1.05
Calculation factor - f1:0.99
Calculation factor - f2A:1
Calculation factor - f2B:1.01
Calculation factor - f2C:1.04
Calculation factor - fHC:1
Preload class A:79 N/micron
Preload class B:103 N/micron
Preload class C:157 N/micron
r1,2 min.:1 mm
r3,4 min.:0.6 mm
da min.:49.6 mm
db min.:49.6 mm
Da max.:70.4 mm
Db max.:71.8 mm
ra max.:1 mm
rb max.:0.6 mm
Basic dynamic load rating C:12.1 kN
Basic static load rating C0:11.4 kN
Fatigue load limit Pu:0.285 kN
Attainable speed for grease lubrication:24000 r/min
Attainable speed for oil-air lubrication:36000 r/min
Ball diameter Dw:5.556 mm
Number of balls z:25
Reference grease quantity Gref:2.93 cm³
Preload class A GA:54 N
Static axial stiffness, preload class A:79 N/µm
Preload class B GB:110 N
Static axial stiffness, preload class B:103 N/µm
Preload class C GC:330 N
Static axial stiffness, preload class C:157 N/µm
Calculation factor f:1.05
Calculation factor f1:0.99
Calculation factor f2A:1
Calculation factor f2B:1.01
Calculation factor f2C:1.04
Calculation factor fHC:1
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:0.26 kg

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