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7900 Series > 7921A5
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7921A5
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Description
Bearing Numbers
Single row
:
7921A5
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
:
48000
Cor
:
54000
Basic load ratings(kgf)
Cr
:
4900
Cor
:
5500
Value
fo
:
16.4
Limiting Speed (rpm)
Grease
:
6600
Oil
:
7500
Distance of action point(mm)
a
:
39.2
Abutment and fillet dimensions
da(min)
:
112
Da(max)
:
138
ra(max)
:
1
Weight
(kg)
:
0.82
Basic load ratings(duplex bearing) (N)
Cr
:
78500
Cor
:
108000
Basic load ratings(duplex bearing) (kgf)
Cr
:
8000
Cor
:
11000
Limiting Speed(duplex bearing) (rpm)
Grease
:
4300
Oil
:
6000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement
:
78.3
face-to-face arrangement
:
38.3
Installation dimensions(duplex bearing)
db(min)
:
-
Db(max)
:
140
rb(max)
:
0.6
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