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FAG
NNU4921-S-K-M-SP
Cylindrical roller bearing NNU4921-S-K-M-SP
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Main Dimensions & Performance Data
d
105 mm
Bore diameter
D
145 mm
Outside diameter
B
40 mm
Width
Cr
130,000 N
Basic dynamic load rating, radial
C0r
260,000 N
Basic static load rating, radial
Cur
34,500 N
Fatigue load limit, radial
nG Grease
5,500 1/min
Limiting speed for grease lubrication
nG Oil
6,500 1/min
Limiting speed for oil lubrication
≈m
1.95 kg
Weight

Mounting dimensions
da
117 mm
diameter shaft shoulder
h12
diameter shaft shoulder tolerance
Da
134 mm
diameter of housing shoulder
H12
diameter of housing shoulder tolerance
ra1 max
1 mm
Maximum recess radius

Dimensions
r1 min
1.1 mm
Minimum chamfer dimension
F
118 mm
Raceway diameter inner ring
ns
6.5 mm
Width of lubricating groove
ds
3.2 mm
Diameter lubrication hole
s
2 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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