Angular contact ball bearings, super-precision 7009 CB/HCP4A
Bearing number : 7009 CB/HCP4A
Size (mm) : 45x75x16
Brand : SKF
Bore Diameter (mm) : 45
Outer Diameter (mm) : 75
Width (mm) : 16
Bearing dimensions and specification in SKF catalogue:
d - 45 mm
D - 75 mm
B - 16 mm
d1 - 56.44 mm
d2 - 55.17 mm
D2 - 65.58 mm
r1,2 - min. - 1 mm
r3,4 - min. - 0.6 mm
a - 16.1 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 - 9.6 kN
Basic static load rating - C0 - 7.2 kN
Fatigue load limit - Pu - 0.305 kN
Limiting speed for grease lubrication - 30000 r/min
Limiting speed for oil lubrication - 48000 mm/min
Ball - Dw - 5.556 mm
Ball - z - 25
Gref - 2.93 cm3
Calculation factor - f0 - 9.6
Preload class A - GA - 31 N
Preload class B - GB - 62 N
Preload class C - GC - 185 N
Calculation factor - f - 1.05
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.02
Calculation factor - f2C - 1.05
Calculation factor - fHC - 1.01
Preload class A - 34 N/micron
Preload class B - 45 N/micron
Preload class C - 70 N/micron
Mass bearing - 0.249 kg
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