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FAG
NNU4956-S-K-M-SP
Cylindrical roller bearing NNU4956-S-K-M-SP
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Main Dimensions & Performance Data
d
280 mm
Bore diameter
D
380 mm
Outside diameter
B
100 mm
Width
Cr
770,000 N
Basic dynamic load rating, radial
C0r
1,790,000 N
Basic static load rating, radial
Cur
198,000 N
Fatigue load limit, radial
nG Grease
1,970 1/min
Limiting speed for grease lubrication
nG Oil
2,320 1/min
Limiting speed for oil lubrication
≈m
44 kg
Weight

Mounting dimensions
da
309.4 mm
diameter shaft shoulder
h12
diameter shaft shoulder tolerance
Da
354 mm
diameter of housing shoulder
H12
diameter of housing shoulder tolerance
ra1 max
2.1 mm
Maximum recess radius

Dimensions
r1 min
2.1 mm
Minimum chamfer dimension
F
312 mm
Raceway diameter inner ring
ns
15 mm
Width of lubricating groove
ds
8 mm
Diameter lubrication hole
s
5.4 mm
Axial displacement

Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
150 °C
Operating temperature max.

Your current product variant
CageMBrass Cage
Tolerance classSPtolerance class SP
Bore typeKTapered, taper 1:12
Locating Feature , bearing outer ringSLubrication holes and lubrication groove in outer ring
Radial internal clearanceC1 (Group 1)Internal clearance smaller than C2
Number of rolling element rows2Double-row design
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