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25-year production experience

d:
D:
B:
7300 Series

7300 Series

Dimension and Parameters

Bearing Numbers
Single row :7328A
DB :7328DB
DF :7328DF
DT :7328DT
Principal dimensions(mm)
d :140
D :300
B :62
r(min) :4
r1(min) :1.5
Basic load ratings(N)
Cr :300000
Cor :335000
Basic load ratings(kgf)
Cr :30500
Cor :34500
Value
fo :14.3
Limiting Speed (rpm)
Grease :2000
Oil :2600
Distance of action point(mm)
a :94.5
Abutment and fillet dimensions
da(min) :158
Da(max) :282
ra(max) :3
Weight
(kg) :21.4
Basic load ratings(duplex bearing) (N)
Cr :490000
Cor :670000
Basic load ratings(duplex bearing) (kgf)
Cr :50000
Cor :68500
Limiting Speed(duplex bearing) (rpm)
Grease :1600
Oil :2000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :189
face-to-face arrangement :65
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :291
rb(max) :1.5