Bearing Numbers
Single row :7903A5
DB :7903DB
DF :7903DF
DT :7903DT
Principal dimensions(mm)
d :17
D :30
B :7
r(min) :0.3
r1(min) :0.15
Basic load ratings(N)
Cr :4750
Cor :2800
Basic load ratings(kgf)
Cr :485
Cor :286
Value
fo :15.1
Limiting Speed (rpm)
Grease :30000
Oil :40000
Distance of action point(mm)
a :9
Abutment and fillet dimensions
da(min) :19.5
Da(max) :27.5
ra(max) :0.3
Weight
(kg) :0.017
Basic load ratings(duplex bearing) (N)
Cr :7750
Cor :5600
Basic load ratings(duplex bearing) (kgf)
Cr :790
Cor :570
Limiting Speed(duplex bearing) (rpm)
Grease :24000
Oil :32000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :18
face-to-face arrangement :4
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :28.8
rb(max) :0.15
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