PRODUCTS


FAG
QJ344-N2-MPA
Four-point contact bearing QJ344-N2-MPA
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Main Dimensions & Performance Data
d
220 mm
Bore diameter
D
460 mm
Outside diameter
B
88 mm
Width
Cr
900,000 N
Basic dynamic load rating, radial
C0r
1,650,000 N
Basic static load rating, radial
Cur
51,000 N
Fatigue load limit, radial
nG
2,430 1/min
Limiting speed
nϑr
1,080 1/min
Reference speed
≈m
85.4 kg
Weight

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

Dimensions
rmin
5 mm
Minimum chamfer dimension
D1
378 mm
Shoulder diameter outer ring
d1
304.15 mm
Shoulder diameter inner ring
a
238.1 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
35 °
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 clearanceCNGroup N (CN)
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