Self-aligning ball bearings

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

Calculation

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1311 ETN9

Dimensions
d 55mm
D 120mm
B 29mm
d177.9mm
D1101.4mm
r1,2min.2mm
Abutment dimensions
damin.66mm
Damax.109mm
ramax.2mm
Calculation data
Basic dynamic load ratingC 50.7kN
Basic static load ratingC0 18kN
Fatigue load limitPu 0.92kN
Reference speed  11000r/min
Limiting speed  7500r/min
Permissible angular misalignmentα 3°
Calculation factorkr 0.04 
Calculation factore 0.23 
Calculation factorY0 2.8 
Calculation factorY1 2.7 
Calculation factorY2 4.2 
Mass
Mass bearing  1.6kg

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