NTN NA4911R bearing

55x80x25

NTN Bearing Corporation of America was established in 1963 to support NTN bearings in the American market. NTN was now capable of manufacturing ball bearings, spherical, tapered, cylindrical, and needle roller bearings and automotive constant velocity joints.



Needle roller bearings NA4911R

Bearing number : NA4911R

Size (mm) : 55x80x25

Brand : NTN

Bore Diameter (mm) : 55

Outer Diameter (mm) : 80

Width (mm) : 25

Bearing dimensions and specification in NTN catalogue:

d - 55 mm

F - 63 mm

D - 80 mm

B - 25 mm

C - 25 mm

r min. - 1 mm

s - 1,5 mm

da min. - 60 mm

Da max. - 75 mm

ra max. - 1 mm

Weight - 0,396 Kg

Basic dynamic load rating (C) - 58,5 kN

Basic static load rating (C0) - 99,5 kN

(Grease) Lubrication Speed - 4 300 r/min

(Oil) Lubrication Speed - 6 500 r/min

Bearing NA4911R

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