NTN 30228U Bearing
d - 140 mm
D - 250 mm
T - 45.75 mm
B - 42 mm
C - 36 mm
ra1 max. - 2.5 mm
a - 48.5 mm
r min. - 4 mm
r1 min. - 3 mm
da min. - 158 mm
Da min - 219 mm
Da max. - 236 mm
db max. - 163 mm
Db min. - 237 mm
ra max. - 3 mm
Sa - 7 mm
Sb - 9.5 mm
Weight - 9.26 Kg
Basic dynamic load rating (C) - 420 kN
Basic static load rating (C0) - 570 kN
(Grease) Lubrication Speed - 1 400 r/min
(Oil) Lubrication Speed - 1 900 r/min
Calculation factor (e) - 0.44
Calculation factor (Y0) - 0.76
Calculation factor (Y2) - 1.38
- #number
- ID(内径)
- OD(外径)
- B(厚度)
NTN Bearings
2011-02-05
2011-09-17
2012-05-06
2013-01-08
2013-09-23
2014-06-25
2015-04-09
2016-01-25
2016-11-24
2017-09-30
2018-08-24
2019-08-03
2020-07-06
2021-06-24
2022-06-09
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