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7300 Series > 7311B
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7311B
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Description
Bearing Numbers
Single row
:
7311B
DB
:
7311DB
DF
:
7311DF
DT
:
7311DT
Principal dimensions(mm)
d
:
55
D
:
120
B
:
29
r(min)
:
2
r1(min)
:
1
Basic load ratings(N)
Cr
:
79000
Cor
:
56500
Basic load ratings(kgf)
Cr
:
8050
Cor
:
5750
Value
fo
:
14.4
Limiting Speed (rpm)
Grease
:
4500
Oil
:
6300
Distance of action point(mm)
a
:
51.2
Abutment and fillet dimensions
da(min)
:
65
Da(max)
:
110
ra(max)
:
2
Weight
(kg)
:
1.45
Basic load ratings(duplex bearing) (N)
Cr
:
128000
Cor
:
113000
Basic load ratings(duplex bearing) (kgf)
Cr
:
13100
Cor
:
11500
Limiting Speed(duplex bearing) (rpm)
Grease
:
3600
Oil
:
5000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement
:
102.4
face-to-face arrangement
:
44.4
Installation dimensions(duplex bearing)
db(min)
:
61
Db(max)
:
114
rb(max)
:
1
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