Self-aligning ball bearings

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

Calculation

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1207 EKTN9

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Dimensions
d 35mm
D 72mm
B 17mm
d147mm
D160.9mm
r1,2min.1.1mm

Tapered bore, taper 1:12

Abutment dimensions
Damax.65mm
ramax.1.1mm
Calculation data
Basic dynamic load ratingC 19kN
Basic static load ratingC0 6kN
Fatigue load limitPu 0.31kN
Reference speed  20000r/min
Limiting speed  13000r/min
Permissible angular misalignmentα 2.5°
Calculation factorkr 0.04 
Calculation factore 0.23 
Calculation factorY0 2.8 
Calculation factorY1 2.7 
Calculation factorY2 4.2 
Mass
Mass bearing  0.32kg
Designation bearing  1207 EKTN9

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