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Bearing 6904NR (NACHI)
Deep groove ball bearings 6904NR
Bearing number : 6904NR
Size (mm) : 20x37x9
Brand : NACHI
Bore Diameter (mm) : 20
Outer Diameter (mm) : 37
Width (mm) : 9
Bearing dimensions and specification in NACHI catalogue:
d - 20 mm
D - 37 mm
B - 9 mm
C - 9 mm
a - 1.7 mm
b - 0.95 mm
f - 0.85 mm
r min. - 0.3 mm
r1 min. - 0.3 mm
D1 - 35.7 mm
D2 - 39.8 mm
Weight - 0.037 Kg
Basic dynamic load rating (C) - 6,35 kN
Basic static load rating (C0) - 3,7 kN
(Grease) Lubrication Speed - 19000 r/min
(Oil) Lubrication Speed - 23000 r/min
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