d - 55 mm
D - 72 mm
B - 9 mm
d1 - 60.7 mm
d2 - 60.7 mm
D1 - 66.5 mm
r1,2 - min. - 0.3 mm
r3,4 - min. - 0.15 mm
a - 13 mm
da - min. - 57 mm
db - min. - 57 mm
Da - max. - 70 mm
Db - max. - 71.2 mm
ra - max. - 0.3 mm
rb - max. - 0.15 mm
dn - 61.3 mm
Basic dynamic load rating - C - 10.1 kN
Basic static load rating - C0 - 10.8 kN
Fatigue load limit - Pu - 0.455 kN
Limiting speed for grease lubrication - 22000 r/min
Limiting speed for oil lubrication - 32000 mm/min
Ball - Dw - 4.762 mm
Ball - z - 29
Gref - 0.88 cm3
Calculation factor - f0 - 17.1
Preload class A - GA - 55 N
Preload class B - GB - 165 N
Preload class C - GC - 330 N
Calculation factor - f - 1.27
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.1
Calculation factor - f2C - 1.18
Calculation factor - fHC - 1.02
Preload class A - 59 N/micron
Preload class B - 101 N/micron
Preload class C - 150 N/micron
Mass bearing - 0.073 kg
Hot number:NACHI 7221 B/DT NTN NA 69/22 KOYO 2216 Timken 26886/26820 Timken 95512X/95925 FBJ HK2220 NBS SC 35-UU AS SNFA VEB 15 /S/NS 7CE3 FAG 7307BG INA YCRS-32 SKF 1100112 SKF 248/530 CAMA/W20 SKF FSAF 23024 KATLC x 4.1/16 SKF FSAF 22613 x 2.1/8 T NTN 6307-2ZN
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