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25-year production experience

d:
D:
B:
7300 Series

7300 Series

Dimension and Parameters

Bearing Numbers
Single row :7328B
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 :275000
Cor :310000
Basic load ratings(kgf)
Cr :28100
Cor :31500
Value
fo :14.8
Limiting Speed (rpm)
Grease :1700
Oil :2400
Distance of action point(mm)
a :123.3
Abutment and fillet dimensions
da(min) :158
Da(max) :282
ra(max) :3
Weight
(kg) :21.6
Basic load ratings(duplex bearing) (N)
Cr :445000
Cor :615000
Basic load ratings(duplex bearing) (kgf)
Cr :45500
Cor :63000
Limiting Speed(duplex bearing) (rpm)
Grease :1400
Oil :1900
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :246.6
face-to-face arrangement :122.6
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :291
rb(max) :1.5