d - 50 mm
D - 72 mm
B - 12 mm
d1 - 57.1 mm
d2 - 57.1 mm
D1 - 64.9 mm
r1,2 - min. - 0.6 mm
r3,4 - min. - 0.3 mm
a - 20.3 mm
da - min. - 53.2 mm
db - min. - 53.2 mm
Da - max. - 68.8 mm
Db - max. - 70.6 mm
ra - max. - 0.6 mm
rb - max. - 0.3 mm
dn - 58.7 mm
Basic dynamic load rating - C - 12.7 kN
Basic static load rating - C0 - 9.8 kN
Fatigue load limit - Pu - 0.415 kN
Limiting speed for grease lubrication - 19000 r/min
Limiting speed for oil lubrication - 30000 mm/min
Ball - Dw - 6.35 mm
Ball - z - 25
Gref - 1.74 cm3
Calculation factor - e - 0.68
Calculation factor - Y2 - 0.87
Calculation factor - Y0 - 0.38
Calculation factor - X2 - 0.41
Calculation factor - Y1 - 0.92
Calculation factor - Y2 - 1.41
Calculation factor - Y0 - 0.76
Calculation factor - X2 - 0.67
Preload class A - GA - 80 N
Preload class B - GB - 160 N
Preload class C - GC - 320 N
Preload class D - GD - 640 N
Calculation factor - f - 1.13
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.17
Calculation factor - fHC - 1.04
Preload class A - 117 N/micron
Preload class B - 152 N/micron
Preload class C - 200 N/micron
Preload class D - 266 N/micron
Mass bearing - 0.119 kg
Hot number:SKF NU 421 FAG NJ2311E+HJ2311E OKB 46120 SKF 6010 NTN 6408ZZ NBS 81148-M FAG B7216-C-T-P4S CX K28x35x16 ISB GEG 280 ES ISB NU 12/560 FBJ QJ213 FAG QJ304-MPA RIV 51212 IKO HK-2220 MRC 9306-U
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