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FAG
NNU4944-S-K-M-SP
Cylindrical roller bearing NNU4944-S-K-M-SP
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Main Dimensions & Performance Data
d
220 mm
Bore diameter
D
300 mm
Outside diameter
B
80 mm
Width
Cr
510,000 N
Basic dynamic load rating, radial
C0r
1,140,000 N
Basic static load rating, radial
Cur
133,000 N
Fatigue load limit, radial
nG Grease
2,550 1/min
Limiting speed for grease lubrication
nG Oil
3,000 1/min
Limiting speed for oil lubrication
≈m
14.79 kg
Weight

Mounting dimensions
da
243 mm
diameter shaft shoulder
h12
diameter shaft shoulder tolerance
Da
279 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
245 mm
Raceway diameter inner ring
ns
12.2 mm
Width of lubricating groove
ds
6.3 mm
Diameter lubrication hole
s
4.3 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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