d - 25 mm
D - 42 mm
B - 9 mm
d1 - 30.7 mm
d2 - 29.4 mm
D1 - 36.39 mm
r1,2 - min. - 0.3 mm
r3,4 - min. - 0.15 mm
a - 9.2 mm
da - min. - 27 mm
db - min. - 27 mm
Da - max. - 40 mm
Db - max. - 41.2 mm
ra - max. - 0.3 mm
rb - max. - 0.15 mm
dn - 31.8 mm
Basic dynamic load rating - C - 5.3 kN
Basic static load rating - C0 - 2.8 kN
Fatigue load limit - Pu - 0.12 kN
Limiting speed for grease lubrication - 58000 r/min
Limiting speed for oil lubrication - 90000 mm/min
Ball - Dw - 4.762 mm
Ball - z - 16
Gref - 0.6 cm3
Calculation factor - f0 - 8.1
Preload class A - GA - 28 N
Preload class B - GB - 85 N
Preload class C - GC - 170 N
Calculation factor - f - 1.06
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.05
Calculation factor - f2C - 1.09
Calculation factor - fHC - 1.01
Preload class A - 23 N/micron
Preload class B - 36 N/micron
Preload class C - 49 N/micron
Mass bearing - 0.036 kg
Hot number:NTN 7238 C/DF SKF LL 639249/2/210/4 NTN 4T-3781/3720 KOYO 54416U NTN AKJ34X53.5X2.5 KOYO K20X24X23SE NKE NJ322-E-TVP3+HJ322-E ISO NK95/36 CYSD NUP217E NTN QJ320 AST SIBP20S MRC 71902TGP/4 SKF 25x37x5 HMS5 RG SKF RLS 8-2RS1 NOK SPNO-200
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