NTN 7304BDT, Size: 20x52x15. NTN 7304BDT are used in a wide variety of applications, suitable for high speeds and are robust in operation, and need little maintenance.
Angular contact ball bearings 7304BDT
Bearing number : 7304BDT
Size (mm) : 20x52x15
Brand : NTN
Bore Diameter (mm) : 20
Outer Diameter (mm) : 52
Width (mm) : 15
Bearing dimensions and specification in NTN catalogue:
d - 20 mm
D - 52 mm
B - 15 mm
ra1 max. - 0,6 mm
Angle (α) - 40 °
a - 22,5 mm
r min. - 1,1 mm
r1 min. - 0,6 mm
2B - 30 mm
da min. - 27 mm
Da max. - 45 mm
db min - 24,5 mm
ra max. - 1 mm
Db max - 47,5 mm
Weight - 0,282 Kg
Basic dynamic load rating (C) - 28,2 kN
Basic static load rating (C0) - 19,3 kN
(Grease) Lubrication Speed - 11 000 r/min
(Oil) Lubrication Speed - 14 000 r/min
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