NSK Bearing

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NSK Bearing
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Bearing 1221

Self-aligning ball bearings 1221

Bearing number : 1221

Size (mm) : 105x190x36

Brand : NSK

Bore Diameter (mm) : 105

Outer Diameter (mm) : 190

Width (mm) : 36

Bearing dimensions and specification in NSK catalogue:


d - 105 mm

D - 190 mm

B - 36 mm

C - 36 mm

r min. - 2,1 mm

da min. - 116 mm

Da max. - 179 mm

ra max. - 2 mm

Weight - 4,52 Kg

Basic dynamic load rating (C) - 75 kN

Basic static load rating (C0) - 32,5 kN

(Grease) Lubrication Speed - 3 000 r/min

(Oil) Lubrication Speed - 3 600 r/min

Calculation factor (e) - 0,18

Calculation factor (Y0) - 3,7

Calculation factor (Y2) - 5,5

Calculation factor (Y3) - 3,6


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