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7200 Series > 7221C
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7221C
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Description
Bearing Numbers
Single row
:
7221C
DB
:
7221DB
DF
:
7221DF
DT
:
7221DT
Principal dimensions(mm)
d
:
105
D
:
190
B
:
36
r(min)
:
2.1
r1(min)
:
1.1
Basic load ratings(N)
Cr
:
162000
Cor
:
143000
Basic load ratings(kgf)
Cr
:
16600
Cor
:
14600
Value
fo
:
14.5
Limiting Speed (rpm)
Grease
:
5300
Oil
:
7500
Distance of action point(mm)
a
:
37.7
Abutment and fillet dimensions
da(min)
:
117
Da(max)
:
178
ra(max)
:
2
Weight
(kg)
:
4.33
Basic load ratings(duplex bearing) (N)
Cr
:
264000
Cor
:
286000
Basic load ratings(duplex bearing) (kgf)
Cr
:
26900
Cor
:
29100
Limiting Speed(duplex bearing) (rpm)
Grease
:
4300
Oil
:
6000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement
:
75.5
face-to-face arrangement
:
3.5
Installation dimensions(duplex bearing)
db(min)
:
-
Db(max)
:
183
rb(max)
:
1
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