Bearing Numbers
Single row :7904A5
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 :6600
Cor :4050
Basic load ratings(kgf)
Cr :675
Cor :410
Value
fo :15.2
Limiting Speed (rpm)
Grease :24000
Oil :32000
Distance of action point(mm)
a :11.1
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 :10700
Cor :8100
Basic load ratings(duplex bearing) (kgf)
Cr :1090
Cor :825
Limiting Speed(duplex bearing) (rpm)
Grease :19000
Oil :26000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :22.3
face-to-face arrangement :4.3
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :35.8
rb(max) :0.15
