NTN 7228BDT Bearing
d - 140 mm
D - 250 mm
B - 42 mm
ra1 max. - 1 mm
Angle (α) - 40 °
a - 103 mm
r min. - 3 mm
r1 min. - 1.1 mm
2B - 84 mm
da min. - 154 mm
Da max. - 236 mm
ra max. - 2.5 mm
Db max - 243 mm
Weight - 17.56 Kg
Basic dynamic load rating (C) - 297 kN
Basic static load rating (C0) - 390 kN
(Grease) Lubrication Speed - 1 900 r/min
(Oil) Lubrication Speed - 2 500 r/min
- #number
- ID(内径)
- OD(外径)
- B(厚度)
NTN Bearings
2010-08-23
2011-03-27
2011-11-08
2012-06-30
2013-03-05
2013-11-23
2014-08-29
2015-06-11
2016-04-04
2017-02-06
2017-12-14
2018-11-10
2019-10-18
2020-09-28
2021-09-14
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