Bearing Numbers
Single row :7921A5
DB :7921DB
DF :7921DF
DT :7921DT
Principal dimensions(mm)
d :105
D :145
B :20
r(min) :1.1
r1(min) :0.6
Basic load ratings(N)
Cr :48000
Cor :54000
Basic load ratings(kgf)
Cr :4900
Cor :5500
Value
fo :16.4
Limiting Speed (rpm)
Grease :6600
Oil :7500
Distance of action point(mm)
a :39.2
Abutment and fillet dimensions
da(min) :112
Da(max) :138
ra(max) :1
Weight
(kg) :0.82
Basic load ratings(duplex bearing) (N)
Cr :78500
Cor :108000
Basic load ratings(duplex bearing) (kgf)
Cr :8000
Cor :11000
Limiting Speed(duplex bearing) (rpm)
Grease :4300
Oil :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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