SKF NA4911 bearing

55x80x25

Bogus Bearings Look More Real Than the Real Ones A recent onslaught of bogus after-market bearings in China has created a major headache for legitimate bearing makers like SKF and Timken , who say that it's often very difficult to distinguish the fakes from the non-fakes.



Needle roller bearings, with machined rings, with an inner ring NA 4911

Bearing number : NA 4911

Size (mm) : 55x80x25

Brand : SKF

Bore Diameter (mm) : 55

Outer Diameter (mm) : 80

Width (mm) : 25

Bearing dimensions and specification in SKF catalogue:

d - 55 mm

D - 80 mm

B - 25 mm

F - 63 mm

r1,2 - min. - 1 mm

s - 1.5 mm

da - min. - 60 mm

Da - max. - 75 mm

ra - max. - 1 mm

Basic dynamic load rating - C - 57.2 kN

Basic static load rating - C0 - 106 kN

Fatigue load limit - Pu - 13.2 kN

Reference speed - 6300 r/min

Limiting speed - 7000 r/min

Mass bearing - 0.393 kg

Bearing NA 4911 Bearing NA 4911

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