508370 Four Row Cylindrical Roller Bearing -

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508370 Four Row Cylindrical Roller Bearing image

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Bearing number:71964 CDMA/P4A
Size (mm):440x320x56
Bore Diameter (mm):440
Outer Diameter (mm):320
Width (mm):56
d:320 mm
D:440 mm
B:56 mm
d1:357 mm
d2:357 mm
D1:403 mm
r1,2 - min.:3 mm
r3,4 - min.:1.1 mm
a:79.1 mm
da - min.:333 mm
db - min.:333 mm
Da - max.:425 mm
Db - max.:434 mm
ra - max.:2.5 mm
rb - max.:1 mm
dn:367 mm
Basic dynamic load rating - C:377 kN
Basic static load rating - C0:620 kN
Fatigue load limit - Pu:13.7 kN
Limiting speed for grease lubrication:2600 r/min
Limiting speed for oil lubrication:4300 mm/min
Ball - Dw:38.1 mm
Ball - z:27
Gref:282 cm3
Calculation factor - f0:16.5
Preload class A - GA:1400 N
Preload class B - GB:2800 N
Preload class C - GC:5600 N
Preload class D - GD:11200 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.04
Calculation factor - f2C:1.09
Calculation factor - f2D:1.15
Calculation factor - fHC:1
Preload class A:281 N/micron
Preload class B:380 N/micron
Preload class C:530 N/micron
Preload class D:765 N/micron
r1,2 min.:3 mm
r3,4 min.:1.1 mm
da min.:333 mm
db min.:333 mm
Da max.:425 mm
Db max.:434 mm
ra max.:2.5 mm
rb max.:1 mm
Basic dynamic load rating C:377 kN
Basic static load rating C0:620 kN
Fatigue load limit Pu:13.7 kN
Attainable speed for grease lubrication:2600 r/min
Attainable speed for oil-air lubrication:4300 r/min
Ball diameter Dw:38.1 mm
Number of balls z:27
Reference grease quantity Gref:282 cm³
Preload class A GA:1400 N
Static axial stiffness, preload class A:281 N/µm
Preload class B GB:2800 N
Static axial stiffness, preload class B:380 N/µm
Preload class C GC:5600 N
Static axial stiffness, preload class C:530 N/µm
Preload class D GD:11200 N
Static axial stiffness, preload class D:765 N/µm
Calculation factor f:1.24
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.04
Calculation factor f2C:1.09
Calculation factor f2D:1.15
Calculation factor fHC:1
Calculation factor f0:16.5
Mass bearing:24 kg

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