Bearing Numbers
Single row :7909A5
DB :7909DB
DF :7909DF
DT :7909DT
Principal dimensions(mm)
d :45
D :68
B :12
r(min) :0.6
r1(min) :0.3
Basic load ratings(N)
Cr :15100
Cor :12700
Basic load ratings(kgf)
Cr :1540
Cor :1290
Value
fo :16.2
Limiting Speed (rpm)
Grease :12000
Oil :17000
Distance of action point(mm)
a :19.2
Abutment and fillet dimensions
da(min) :50
Da(max) :63
ra(max) :0.6
Weight
(kg) :0.13
Basic load ratings(duplex bearing) (N)
Cr :24600
Cor :25400
Basic load ratings(duplex bearing) (kgf)
Cr :2510
Cor :2590
Limiting Speed(duplex bearing) (rpm)
Grease :9500
Oil :13000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :38.4
face-to-face arrangement :14.4
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :65.5
rb(max) :0.3
