Angular contact ball bearings, super-precision 7213 CD/HCP4A
Bearing number : 7213 CD/HCP4A
Size (mm) : 65x120x23
Brand : SKF
Bore Diameter (mm) : 65
Outer Diameter (mm) : 120
Width (mm) : 23
Bearing dimensions and specification in SKF catalogue:
d - 65 mm
D - 120 mm
B - 23 mm
d1 - 82.9 mm
d2 - 82.9 mm
D1 - 102.1 mm
r1,2 - min. - 1.5 mm
r3,4 - min. - 0.6 mm
a - 24 mm
da - min. - 74 mm
db - min. - 74 mm
Da - max. - 111 mm
Db - max. - 115.8 mm
ra - max. - 1.5 mm
rb - max. - 0.6 mm
dn - 86.6 mm
Basic dynamic load rating - C - 66.3 kN
Basic static load rating - C0 - 53 kN
Fatigue load limit - Pu - 2.3 kN
Limiting speed for grease lubrication - 15000 r/min
Limiting speed for oil lubrication - 22000 mm/min
Ball - Dw - 15.875 mm
Ball - z - 15
Gref - 12.471 cm3
Calculation factor - f0 - 14.6
Preload class A - GA - 250 N
Preload class B - GB - 500 N
Preload class C - GC - 1000 N
Preload class D - GD - 2000 N
Calculation factor - f - 1.07
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.01
Calculation factor - f2C - 1.03
Calculation factor - f2D - 1.06
Calculation factor - fHC - 1.01
Preload class A - 87 N/micron
Preload class B - 118 N/micron
Preload class C - 164 N/micron
Preload class D - 236 N/micron
Mass bearing - 0.879 kg
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