NTN 4T-1780/1729 Bearing
NTN 4T-1780/1729 Bearing , NTN bearing , NTN 4T-1780/1729 introduced , NTN bearings Retail
d - 25,4 mm
D - 56,896 mm
T - 19,368 mm
B - 19,837 mm
C - 15,875 mm
ra1 max. - 1,3 mm
a - 6,5 mm
Da - 49 mm
db - 30 mm
ra max. - 0,8 mm
da - 30,5 mm
Db - 51 mm
Weight - 0,238 Kg
Basic dynamic load rating (C) - 42,5 kN
Basic static load rating (C0) - 46,5 kN
(Grease) Lubrication Speed - 7 200 r/min
(Oil) Lubrication Speed - 9 600 r/min
Calculation factor (e) - 0,31
Calculation factor (Y0) - 1,07
Calculation factor (Y2) - 1,95
Size:25,4 mm * 56,896 mm * 19,368 mm
- #number
- ID(内径)
- OD(外径)
- B(厚度)
NTN Bearings
2011-02-25
2011-11-10
2012-07-31
2013-04-25
2014-01-22
2014-10-28
2015-08-08
2016-05-21
2017-03-10
2018-01-03
2018-11-08
2019-09-19
2020-08-03
2021-06-26
2022-05-24
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