TIMKEN 48290-90028 services Tapered Roller Bearing Assemblies

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TIMKEN 48290-90028 services Tapered Roller Bearing Assemblies image

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TIMKEN 48290-90028 services Tapered Roller Bearing Assemblies Product Features

Bearing number:71808 CD/HCP4
Size (mm):52x40x7
Bore Diameter (mm):52
Outer Diameter (mm):40
Width (mm):7
d:40 mm
D:52 mm
B:7 mm
d1:44.1 mm
d2:44.1 mm
D1:48.1 mm
r1,2 - min.:0.3 mm
r3,4 - min.:0.15 mm
a:9.7 mm
da - min.:42 mm
db - min.:42 mm
Da - max.:50 mm
Db - max.:51.2 mm
ra - max.:0.3 mm
rb - max.:0.15 mm
dn:44.5 mm
Basic dynamic load rating - C:4.9 kN
Basic static load rating - C0:4.9 kN
Fatigue load limit - Pu:0.208 kN
Limiting speed for grease lubrication:30000 r/min
Limiting speed for oil lubrication:45000 mm/min
Ball - Dw:3.175 mm
Ball - z:29
Gref:0.31 cm3
Calculation factor - f0:17.2
Preload class A - GA:26 N
Preload class B - GB:78 N
Preload class C - GC:155 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.1
Calculation factor - f2C:1.18
Calculation factor - fHC:1.02
Preload class A:40 N/micron
Preload class B:68 N/micron
Preload class C:100 N/micron
r1,2 min.:0.3 mm
r3,4 min.:0.15 mm
da min.:42 mm
db min.:42 mm
Da max.:50 mm
Db max.:51.2 mm
ra max.:0.3 mm
rb max.:0.15 mm
Basic dynamic load rating C:4.88 kN
Basic static load rating C0:4.9 kN
Fatigue load limit Pu:0.208 kN
Attainable speed for grease lubrication:30000 r/min
Attainable speed for oil-air lubrication:45000 r/min
Ball diameter Dw:3.175 mm
Number of balls z:29
Reference grease quantity Gref:0.31 cm³
Preload class A GA:26 N
Static axial stiffness, preload class A:40 N/µm
Preload class B GB:78 N
Static axial stiffness, preload class B:68 N/µm
Preload class C GC:155 N
Static axial stiffness, preload class C:100 N/µm
Calculation factor f:1.23
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.1
Calculation factor f2C:1.18
Calculation factor fHC:1.02
Calculation factor f0:17.2
Mass bearing:0.029 kg

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