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plain bearing lubrication SIBP12S AST image

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plain bearing lubrication SIBP12S AST Product identifiers

Bearing number:71910 ACB/HCP4A
Size (mm):72x50x12
Bore Diameter (mm):72
Outer Diameter (mm):50
Width (mm):12
d:50 mm
D:72 mm
B:12 mm
d1:57.95 mm
d2:56.9 mm
D2:66.04 mm
r1,2 - min.:0.6 mm
r3,4 - min.:0.3 mm
a:23.2 mm
da - min.:53.2 mm
db - min.:53.2 mm
Da - max.:68.8 mm
Db - max.:70 mm
ra - max.:0.6 mm
rb - max.:0.3 mm
dn:58.7 mm
Basic dynamic load rating - C:7.3 kN
Basic static load rating - C0:5.8 kN
Fatigue load limit - Pu:0.25 kN
Limiting speed for grease lubrication:28000 r/min
Limiting speed for oil lubrication:43000 mm/min
Ball - Dw:4.762 mm
Ball - z:29
Gref:1.89 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:43 N
Preload class B - GB:86 N
Preload class C - GC:260 N
Calculation factor - f:1.09
Calculation factor - f1:0.99
Calculation factor - f2A:1
Calculation factor - f2B:1.02
Calculation factor - f2C:1.08
Calculation factor - fHC:1.01
Preload class A:89 N/micron
Preload class B:114 N/micron
Preload class C:172 N/micron
r1,2 min.:0.6 mm
r3,4 min.:0.3 mm
da min.:53.2 mm
db min.:53.2 mm
Da max.:68.8 mm
Db max.:70 mm
ra max.:0.6 mm
rb max.:0.3 mm
Basic dynamic load rating C:9.75 kN
Basic static load rating C0:9.65 kN
Fatigue load limit Pu:0.25 kN
Attainable speed for grease lubrication:28000 r/min
Attainable speed for oil-air lubrication:43000 r/min
Ball diameter Dw:4.762 mm
Number of balls z:29
Reference grease quantity Gref:1.89 cm³
Preload class A GA:43 N
Static axial stiffness, preload class A:89 N/µm
Preload class B GB:86 N
Static axial stiffness, preload class B:114 N/µm
Preload class C GC:260 N
Static axial stiffness, preload class C:172 N/µm
Calculation factor f:1.09
Calculation factor f1:0.99
Calculation factor f2A:1
Calculation factor f2B:1.02
Calculation factor f2C:1.08
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:0.13 kg

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