NTN 4T-30208 Bearing
d - 40 mm
D - 80 mm
T - 19.75 mm
B - 18 mm
C - 16 mm
ra1 max. - 1.5 mm
a - 16.5 mm
r min. - 1.5 mm
r1 min. - 1.5 mm
da min. - 48.5 mm
Da min - 69 mm
Da max. - 71.5 mm
db max. - 49 mm
Db min. - 75 mm
ra max. - 1.5 mm
Sa - 3 mm
Sb - 3.5 mm
Weight - 0.435 Kg
Basic dynamic load rating (C) - 61 kN
Basic static load rating (C0) - 67 kN
(Grease) Lubrication Speed - 4 900 r/min
(Oil) Lubrication Speed - 6 600 r/min
Calculation factor (e) - 0.37
Calculation factor (Y0) - 0.88
Calculation factor (Y2) - 1.6
- #number
- ID(内径)
- OD(外径)
- B(厚度)
NTN Bearings
2011-03-01
2011-10-12
2012-06-01
2013-02-05
2013-10-24
2014-07-24
2015-05-09
2016-02-28
2016-12-30
2017-11-07
2018-09-29
2019-09-07
2020-08-15
2021-08-01
2022-07-18
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