7921DT,7921DF,7921DB,7921C
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7900 Series
Dimension and Parameters
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- Bearing Numbers
-
Single row7921C
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DB7921DB
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DF7921DF
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DT7921DT
- Principal dimensions(mm)
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d105
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D145
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B20
-
r(min)1.1
-
r1(min)0.6
- Basic load ratings(N)
-
Cr51000
-
Cor57000
- Basic load ratings(kgf)
-
Cr5200
-
Cor5800
- Value
-
fo16.5
- Limiting Speed (rpm)
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Grease6300
-
Oil9000
- Distance of action point(mm)
-
a26.7
- Abutment and fillet dimensions
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da(min)112
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Da(max)138
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ra(max)1
- Weight
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(kg)0.826
- Basic load ratings(duplex bearing) (N)
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Cr83000
-
Cor114000
- Basic load ratings(duplex bearing) (kgf)
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Cr8450
-
Cor11600
- Limiting Speed(duplex bearing) (rpm)
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Grease5300
-
Oil7100
- Distance of action point (duplex bearing)(a0)
-
back-to-back arrangement53.5
-
face-to-face arrangement13.5
- Installation dimensions(duplex bearing)
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db(min)-
-
Db(max)140
-
rb(max)0.6