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
2010-09-17
2011-04-22
2011-12-05
2012-07-29
2013-04-05
2013-12-25
2014-09-29
2015-07-15
2016-05-09
2017-03-12
2018-01-23
2018-12-20
2019-11-28
2020-11-07
2021-10-27
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