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Bearing

SKF Single row deep groove ball bearing

Bearing

Designation

618/8

21
SKF Single row deep groove ball bearing
ParameterSymbolValue
Bored
8 mm
0.315 in
Outer diameterD
16 mm
0.6299 in
WidthB
4 mm
0.1575 in
Reference speed
90000 r/min
Limiting speed
56000 r/min
Mass
0.003 kg
0.0066 lb
Dynamic load ratingC
0.819 kN
0.1841 klbf
Static load ratingC0
0.3 kN
0.0674 klbf
Fatigue load limitPu
0.012 kN
0.0027 klbf
Inner ring outside diameterd1
10.5 mm
0.4134 in
Outer ring inside diameterD1
13.5 mm
0.5315 in
Inner ring recess diameterd2
-
-
Outer ring recess diameterD2
-
-
Chamfer dimensionr1 min.
0.2 mm
0.0079 in
Chamfer dimensionr2 min.
0.2 mm
0.0079 in
Shaft shoulder diameterda min.
9.4 mm
0.3701 in
Shaft shoulder diameterda max.
-
-
Housing shoulder diameterDa max.
14.6 mm
0.5748 in
Fillet radiusra max.
0.2 mm
0.0079 in
Minimum load factorkr
0.015
Calculation factorf0
7.5

Main information

Technical and reference information about the record

Brand
SKF
Category
Bearing
Product type
Single row deep groove ball bearing

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