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25-year production experience

d:
D:
B:
7300 Series

7300 Series

Dimension and Parameters

Bearing Numbers
Single row :7303A
DB :7303DB
DF :7303DF
DT :7303DT
Principal dimensions(mm)
d :17
D :47
B :14
r(min) :1
r1(min) :0.6
Basic load ratings(N)
Cr :15900
Cor :8650
Basic load ratings(kgf)
Cr :1630
Cor :880
Value
fo :13.1
Limiting Speed (rpm)
Grease :14000
Oil :19000
Distance of action point(mm)
a :16.2
Abutment and fillet dimensions
da(min) :23
Da(max) :41
ra(max) :1
Weight
(kg) :0.116
Basic load ratings(duplex bearing) (N)
Cr :25900
Cor :17300
Basic load ratings(duplex bearing) (kgf)
Cr :2640
Cor :1760
Limiting Speed(duplex bearing) (rpm)
Grease :11000
Oil :15000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :32.5
face-to-face arrangement :4.5
Installation dimensions(duplex bearing)
db(min) :22
Db(max) :42
rb(max) :0.6