Bearing Numbers
Single row :7904C
DB :7904DB
DF :7904DF
DT :7904DT
Principal dimensions(mm)
d :20
D :37
B :9
r(min) :0.3
r1(min) :0.15
Basic load ratings(N)
Cr :6950
Cor :4250
Basic load ratings(kgf)
Cr :710
Cor :430
Value
fo :14.9
Limiting Speed (rpm)
Grease :28000
Oil :38000
Distance of action point(mm)
a :8.3
Abutment and fillet dimensions
da(min) :22.5
Da(max) :34.5
ra(max) :0.3
Weight
(kg) :0.036
Basic load ratings(duplex bearing) (N)
Cr :11300
Cor :8500
Basic load ratings(duplex bearing) (kgf)
Cr :1150
Cor :865
Limiting Speed(duplex bearing) (rpm)
Grease :22000
Oil :32000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :16.6
face-to-face arrangement :1.4
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :35.8
rb(max) :0.15
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