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7900 Series > 7921C
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7921C
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Description
Bearing Numbers
Single row
:
7921C
DB
:
7921DB
DF
:
7921DF
DT
:
7921DT
Principal dimensions(mm)
d
:
105
D
:
145
B
:
20
r(min)
:
1.1
r1(min)
:
0.6
Basic load ratings(N)
Cr
:
51000
Cor
:
57000
Basic load ratings(kgf)
Cr
:
5200
Cor
:
5800
Value
fo
:
16.5
Limiting Speed (rpm)
Grease
:
6300
Oil
:
9000
Distance of action point(mm)
a
:
26.7
Abutment and fillet dimensions
da(min)
:
112
Da(max)
:
138
ra(max)
:
1
Weight
(kg)
:
0.826
Basic load ratings(duplex bearing) (N)
Cr
:
83000
Cor
:
114000
Basic load ratings(duplex bearing) (kgf)
Cr
:
8450
Cor
:
11600
Limiting Speed(duplex bearing) (rpm)
Grease
:
5300
Oil
:
7100
Distance of action point (duplex bearing)(a0)
back-to-back arrangement
:
53.5
face-to-face arrangement
:
13.5
Installation dimensions(duplex bearing)
db(min)
:
-
Db(max)
:
140
rb(max)
:
0.6
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