NUP2306 NUP2306E NUP2306MNUP2306ECP NUP2306ETVP2 Cylindrical Roller Bearing -

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NUP2306 NUP2306E NUP2306MNUP2306ECP NUP2306ETVP2 Cylindrical Roller Bearing image

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Bearing number:71948 CD/HCP4AL
Size (mm):320x240x38
Bore Diameter (mm):320
Outer Diameter (mm):240
Width (mm):38
d:240 mm
D:320 mm
B:38 mm
d1:264.7 mm
d2:264.7 mm
D1:295.3 mm
b:3.5 mm
C1:20.9 mm
C2:7.1 mm
C3:5.45 mm
r1,2 - min.:2.1 mm
r3,4 - min.:1 mm
a:56.6 mm
da - min.:251 mm
db - min.:251 mm
Da - max.:309 mm
Db - max.:315 mm
ra - max.:2 mm
rb - max.:1 mm
dn:271.4 mm
Basic dynamic load rating - C:229 kN
Basic static load rating - C0:325 kN
Fatigue load limit - Pu:8.2 kN
Limiting speed for grease lubrication:4800 r/min
Limiting speed for oil lubrication:6700 mm/min
Ball - Dw:25.4 mm
Ball - z:31
Gref:93 cm3
Calculation factor - f0:16.7
Preload class A - GA:860 N
Preload class B - GB:1720 N
Preload class C - GC:3440 N
Preload class D - GD:6880 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.07
Calculation factor - f2C:1.12
Calculation factor - f2D:1.18
Calculation factor - fHC:1.04
Preload class A:263 N/micron
Preload class B:361 N/micron
Preload class C:512 N/micron
Preload class D:752 N/micron
r1,2 min.:2.1 mm
r3,4 min.:1 mm
da min.:251 mm
db min.:251 mm
Da max.:309 mm
Db max.:315 mm
ra max.:2 mm
rb max.:1 mm
Basic dynamic load rating C:229 kN
Basic static load rating C0:325 kN
Fatigue load limit Pu:8.15 kN
Attainable speed for grease lubrication:4800 r/min
Attainable speed for oil-air lubrication:6700 r/min
Ball diameter Dw:25.4 mm
Number of balls z:31
Reference grease quantity Gref:93 cm³
Preload class A GA:860 N
Static axial stiffness, preload class A:263 N/µm
Preload class B GB:1720 N
Static axial stiffness, preload class B:361 N/µm
Preload class C GC:3440 N
Static axial stiffness, preload class C:512 N/µm
Preload class D GD:6880 N
Static axial stiffness, preload class D:752 N/µm
Calculation factor f:1.32
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.07
Calculation factor f2C:1.12
Calculation factor f2D:1.18
Calculation factor fHC:1.04
Calculation factor f0:16.7
Mass bearing:5.98 kg

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