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Bearing 311NR (SKF)
Deep groove ball bearings 311NR
Bearing number : 311NR
Size (mm) : 55x120x29
Brand : SKF
Bore Diameter (mm) : 55
Outer Diameter (mm) : 120
Width (mm) : 29
Bearing dimensions and specification in SKF catalogue:
d - 55 mm
D - 120 mm
B - 29 mm
C - 29 mm
b - 3,1 mm
d1 - 75,3 mm
f - 2,82 mm
r0 max. - 0,6 mm
r1 min. - 2 mm
r2 min. - 2 mm
C - 4,06 mm
D2 - 104 mm
D3 - 115,21 mm
D4 - 129,7 mm
ba min. - 3,5 mm
Ca max. - 6,88 mm
da min. - 66 mm
da max - 75,2 mm
Da max. - 109 mm
Db min. - 131 mm
ra max. - 2 mm
Weight - 1,5 Kg
Basic dynamic load rating (C) - 79,2 kN
Basic static load rating (C0) - 67 kN
Fatigue load limit (Pu) - 2,85
Reference speed - 10000 r/min
Limiting speed - 6300 r/min
Calculation factor (kr) - 0,05
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