d - 120 mm
D - 180 mm
B - 28 mm
d1 - 143.2 mm
d2 - 140.8 mm
D2 - 161.9 mm
r1,2 - min. - 2 mm
r3,4 - min. - 1 mm
a - 34.2 mm
da - min. - 129 mm
db - min. - 129 mm
Da - max. - 171 mm
Db - max. - 175.4 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 144.7 mm
Basic dynamic load rating - C - 37.7 kN
Basic static load rating - C0 - 39 kN
Fatigue load limit - Pu - 1.3 kN
Limiting speed for grease lubrication - 9500 r/min
Limiting speed for oil lubrication - 14000 mm/min
Ball - Dw - 11.112 mm
Ball - z - 33
Gref - 23.69 cm3
Calculation factor - f0 - 9.8
Preload class A - GA - 130 N
Preload class B - GB - 260 N
Preload class C - GC - 780 N
Calculation factor - f - 1.08
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 - 75 N/micron
Preload class B - 98 N/micron
Preload class C - 156 N/micron
Mass bearing - 2.35 kg
Hot number:NTN 71912 C/DB ZKL 7207 B/DB NSK 53210 U NSK F 687 OKB 60105 KOYO 28MM3516 FAG 31309-A-N11CA-A60-100 NTN 7030CG/GNP4 ISO DAC45830044 SKF GX 60 F NKE NJ2232-E-MA6+HJ2232-E ISO NNF5024 V KOYO UCFB201 Torrington 239/500 RIV E-4
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