Self-aligning ball bearings

Tolerances: Normal, JS7
Radial internal clearance: table
Fits for standard conditions
Tolerances and resultant fits

Calculation

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1306 ETN9

Dimensions
d 30mm
D 72mm
B 19mm
d145.1mm
D159.1mm
r1,2min.1.1mm
Abutment dimensions
damin.37mm
Damax.65mm
ramax.1.1mm
Calculation data
Basic dynamic load ratingC 22.5kN
Basic static load ratingC0 6.8kN
Fatigue load limitPu 0.36kN
Reference speed  19000r/min
Limiting speed  13000r/min
Permissible angular misalignmentα 3°
Calculation factorkr 0.04 
Calculation factore 0.25 
Calculation factorY0 2.5 
Calculation factorY1 2.5 
Calculation factorY2 3.9 
Mass
Mass bearing  0.39kg

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