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FAG
QJ1252-N2-MPA-C3
Four-point contact bearing QJ1252-N2-MPA-C3
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Main Dimensions & Performance Data
d
260 mm
Bore diameter
D
480 mm
Outside diameter
B
90 mm
Width
Cr
760,000 N
Basic dynamic load rating, radial
C0r
1,480,000 N
Basic static load rating, radial
Cur
43,500 N
Fatigue load limit, radial
nG
2,360 1/min
Limiting speed
nϑr
1,210 1/min
Reference speed
≈m
78 kg
Weight

Mounting dimensions
da min
280 mm
Minimum diameter shaft shoulder
Da max
460 mm
Maximum diameter of housing shoulder
ra max
4 mm
Maximum fillet radius

Dimensions
rmin
5 mm
Minimum chamfer dimension
D1
398.2 mm
Shoulder diameter outer ring
d1
342.25 mm
Shoulder diameter inner ring
a
370 mm
Distance between the apexes of the pressure cones
an
15 mm
Hight retaining slot
bn
12.5 mm
Width retaining slot
rn
2.5 mm
Radius retaining slot
45 °
Angle retaining slot
α
45 °
Contact angle

Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
200 °C
Operating temperature max.

Your current product variant
Design, bearing outer ringN2two retaining grooves in the outer ring on one side
CageMPAsolid brass cage, outer ring guided
Tolerance classPNNormal (PN)
Dimensional / heat stabilization S1Rings dimensional stabilized up to 200°
Axial internal clearanceC3Group 3 (C3), bigger than CN
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