SKF NNU4956B/SPW33 bearing

280x380x100

Each bearing part NO. of all the brand bearings have unique bar code, such as SKF bearings, NSK bearings, Germany FAG bearings etc, which all have different bar code. It is a very important evidence to certify SKF bearings are original or copy.



Cylindrical roller bearings, double row, super-precision NNU 4956 B/SPW33

Bearing number : NNU 4956 B/SPW33

Size (mm) : 280x380x100

Brand : SKF

Bore Diameter (mm) : 280

Outer Diameter (mm) : 380

Width (mm) : 100

Bearing dimensions and specification in SKF catalogue:

d - 280 mm

D - 380 mm

B - 100 mm

D1 - 345.6 mm

F - 312 mm

b - 13.9 mm

K - 3 mm

r1,2 - min. - 2.1 mm

r1,2 - min. - 2.1 mm

s - 4.5 mm

da - min. - 291 mm

da - max. - 308 mm

db - min. - 316 mm

Da - max. - 369 mm

ra - max. - 2 mm

ra - max. - 2 mm

dn - 313.5 mm

Basic dynamic load rating - C - 765 kN

Basic static load rating - C0 - 1800 kN

Fatigue load limit - Pu - 170 kN

Limiting speed for grease lubrication - 1900 r/min

Limiting speed for oil lubrication - 2200 mm/min

Gref - 384 cm

Mass bearing - 32.5 kg

Bearing NNU 4956 B/SPW33 Bearing NNU 4956 B/SPW33

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