Bearing Numbers
Single row :7304B
DB :7304DB
DF :7304DF
DT :7304DT
Principal dimensions(mm)
d :20
D :52
B :15
r(min) :1.1
r1(min) :0.6
Basic load ratings(N)
Cr :17300
Cor :9650
Basic load ratings(kgf)
Cr :1770
Cor :985
Value
fo :13.9
Limiting Speed (rpm)
Grease :11000
Oil :15000
Distance of action point(mm)
a :22.6
Abutment and fillet dimensions
da(min) :27
Da(max) :45
ra(max) :1
Weight
(kg) :0.15
Basic load ratings(duplex bearing) (N)
Cr :28200
Cor :19300
Basic load ratings(duplex bearing) (kgf)
Cr :2870
Cor :1970
Limiting Speed(duplex bearing) (rpm)
Grease :9000
Oil :12000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :45.2
face-to-face arrangement :15.2
Installation dimensions(duplex bearing)
db(min) :25
Db(max) :47
rb(max) :0.6
