d - 25 mm
D - 42 mm
B - 9 mm
d1 - 30.6 mm
d2 - 30.6 mm
D2 - 39.15 mm
r1,2 - min. - 0.3 mm
r3,4 - min. - 0.2 mm
a - 9 mm
da - min. - 27 mm
da - max. - 30.1 mm
db - min. - 27 mm
db - max. - 30.1 mm
Da - max. - 40 mm
Db - max. - 40.6 mm
ra - max. - 0.3 mm
rb - max. - 0.2 mm
Basic dynamic load rating - C - 6.8 kN
Basic static load rating - C0 - 4 kN
Fatigue load limit - Pu - 0.17 kN
Limiting speed for grease lubrication - 45000 r/min
Ball - Dw - 4.762 mm
Ball - z - 18
Calculation factor - f0 - 10.2
Preload class A - GA - 25 N
Preload class B - GB - 50 N
Preload class C - GC - 100 N
Preload class D - GD - 200 N
Calculation factor - f - 1.07
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.18
Calculation factor - fHC - 1.04
Preload class A - 27 N/micron
Preload class B - 36 N/micron
Preload class C - 49 N/micron
Preload class D - 69 N/micron
Mass bearing - 0.038 kg
Hot number:MRC 7021 C/DB NTN 71921 C/DT NACHI NU 218 E SKF 1726210-2RS1 NSK 23996CAE4 SKF 3306ATN9 KOYO 96825/96140 NTN NF217 PFI PW40740036/34CS CYSD W6302 Torrington 23188 Barden MM40BS72P/4 New Departure WC8506 MRC 5414C SKF SY 507 M
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