NTN 7221DF Bearing
NTN 7221DF Bearing , NTN bearing , NTN 7221DF high precision , NTN bearings Online
d - 105 mm
D - 190 mm
B - 36 mm
ra1 max. - 1 mm
Angle (α) - 25 °
a - 60,5 mm
r min. - 2,1 mm
r1 min. - 1,1 mm
2B - 72 mm
Da max. - 178 mm
db min - 112 mm
ra max. - 2 mm
Weight - 7,58 Kg
Basic dynamic load rating (C) - 254 kN
Basic static load rating (C0) - 283 kN
(Grease) Lubrication Speed - 3 000 r/min
(Oil) Lubrication Speed - 4 000 r/min
Size:105 mm * 190 mm *
- #number
- ID(内径)
- OD(外径)
- B(厚度)
NTN Bearings
2010-12-15
2011-08-29
2012-05-17
2013-02-09
2013-11-06
2014-08-10
2015-05-19
2016-03-01
2016-12-18
2017-10-10
2018-08-12
2019-06-22
2020-05-06
2021-03-23
2022-02-20
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