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7300 Series > 7308B
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7308B
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Description
Bearing Numbers
Single row
:
7308B
DB
:
7308DB
DF
:
7308DF
DT
:
7308DT
Principal dimensions(mm)
d
:
40
D
:
90
B
:
23
r(min)
:
1.5
r1(min)
:
1
Basic load ratings(N)
Cr
:
45000
Cor
:
30500
Basic load ratings(kgf)
Cr
:
4550
Cor
:
3100
Value
fo
:
14.5
Limiting Speed (rpm)
Grease
:
6300
Oil
:
8500
Distance of action point(mm)
a
:
38.8
Abutment and fillet dimensions
da(min)
:
49
Da(max)
:
81
ra(max)
:
1.5
Weight
(kg)
:
0.648
Basic load ratings(duplex bearing) (N)
Cr
:
73000
Cor
:
60500
Basic load ratings(duplex bearing) (kgf)
Cr
:
7400
Cor
:
6200
Limiting Speed(duplex bearing) (rpm)
Grease
:
5000
Oil
:
6700
Distance of action point (duplex bearing)(a0)
back-to-back arrangement
:
77.5
face-to-face arrangement
:
31.5
Installation dimensions(duplex bearing)
db(min)
:
46
Db(max)
:
84
rb(max)
:
1
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