d - 50 mm
D - 72 mm
B - 12 mm
d1 - 56.7 mm
d2 - 54.9 mm
D2 - 67.7 mm
r1,2 - min. - 0.6 mm
r3,4 - min. - 0.3 mm
a - 14.7 mm
da - min. - 53.2 mm
da - max. - 56.1 mm
db - min. - 52 mm
db - max. - 54.5 mm
Da - max. - 68.8 mm
Db - max. - 70 mm
ra - max. - 0.6 mm
rb - max. - 0.3 mm
Basic dynamic load rating - C - 12.7 kN
Basic static load rating - C0 - 8.6 kN
Fatigue load limit - Pu - 0.365 kN
Limiting speed for grease lubrication - 26000 r/min
Ball - Dw - 7.144 mm
Ball - z - 21
Calculation factor - f0 - 8.4
Preload class A - GA - 69 N
Preload class B - GB - 210 N
Preload class C - GC - 410 N
Calculation factor - f - 1.15
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - fHC - 1
Preload class A - 38 N/micron
Preload class B - 61 N/micron
Preload class C - 83 N/micron
Mass bearing - 0.125 kg
Hot number:ZKL NU 2222 NSK NU 220 OKB 3113728W2 OKB NSK 6209L11-H-20ZZ KOYO 6303 2RD C3 NTN 7030CDTBT ISO 7304 CDF NBS NKIS 50 CX NNU4956 PFI PHU2193 SKF VKBA 1422 NTN S-3609-2RSNR SKF 99233 NOK TB 35 55 11 ACM
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