d - 30 mm
D - 55 mm
B - 13 mm
d1 - 39.45 mm
d2 - 38.3 mm
D2 - 47.25 mm
r1,2 - min. - 1 mm
r3,4 - min. - 0.6 mm
a - 12.2 mm
da - min. - 34.6 mm
db - min. - 34.6 mm
Da - max. - 50.4 mm
Db - max. - 51.8 mm
ra - max. - 1 mm
rb - max. - 0.6 mm
dn - 40 mm
Basic dynamic load rating - C - 6.5 kN
Basic static load rating - C0 - 4.2 kN
Fatigue load limit - Pu - 0.176 kN
Limiting speed for grease lubrication - 36000 r/min
Limiting speed for oil lubrication - 56000 mm/min
Ball - Dw - 4.762 mm
Ball - z - 20
Gref - 1.4 cm3
Calculation factor - f0 - 9.4
Preload class A - GA - 21 N
Preload class B - GB - 42 N
Preload class C - GC - 125 N
Calculation factor - f - 1.03
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.02
Calculation factor - f2C - 1.05
Calculation factor - fHC - 1
Preload class A - 22 N/micron
Preload class B - 29 N/micron
Preload class C - 46 N/micron
Mass bearing - 0.13 kg
Hot number:DKF 7218 AC SKF 51414 KOYO N 406 CX 1212K+H212 SIGMA 20208 KT Timken 22319YM KOYO 365A/362A CX 7048 A-UD AST AST50 WC24IB NSK MF-4020 NSK MR62 ISO RNA4900-2RS SKF 71917 CB/P4AL SKF SAW 23532 x 5.1/2 T KOYO 6219-2Z
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