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Bearing 4T-344/332 (NTN)
Tapered roller bearings 4T-344/332
Bearing number : 4T-344/332
Size (mm) : 40x80x21
Brand : NTN
Bore Diameter (mm) : 40
Outer Diameter (mm) : 80
Width (mm) : 21
Bearing dimensions and specification in NTN catalogue:
d - 40 mm
D - 80 mm
T - 21 mm
B - 22,403 mm
C - 17,826 mm
ra1 max. - 1,3 mm
a - 6,6 mm
Da - 73 mm
db - 45,5 mm
ra max. - 3,5 mm
da - 52 mm
Db - 75 mm
Weight - 0,479 Kg
Basic dynamic load rating (C) - 68 kN
Basic static load rating (C0) - 75 kN
(Grease) Lubrication Speed - 4 700 r/min
(Oil) Lubrication Speed - 6 300 r/min
Calculation factor (e) - 0,27
Calculation factor (Y0) - 1,21
Calculation factor (Y2) - 2,2
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