Bearing Numbers
Single row :7921A5
DB :7921DB
DF :7921DF
DT :7921DT
Principal dimensions(mm)
д :105
Д :145
Б :20
r(min) :1.1
r1(min) :0.6
Basic load ratings(N)
Кр :48000
Кор :54000
Basic load ratings(kgf)
Кр :4900
Кор :5500
Value
fo :16.4
Limiting Speed (rpm)
Смазка :6600
Масло :7500
Distance of action point(mm)
a :39.2
Abutment and fillet dimensions
da(min) :112
Da(max) :138
ra(max) :1
Масса
(kg) :0.82
Basic load ratings(duplex bearing) (N)
Кр :78500
Кор :108000
Basic load ratings(duplex bearing) (kgf)
Кр :8000
Кор :11000
Limiting Speed(duplex bearing) (rpm)
Смазка :4300
Масло :6000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :78.3
face-to-face arrangement :38.3
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :140
rb(max) :0.6
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