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INA
XSA140744-N
Crossed roller, bearingswith external gear teeth, sealed XSA140744-N
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Main Dimensions & Performance Data
diZT
674 mm
Diameter centring inner ring
IT7
Diameter centring inner ring tolerance
t
10 mm
Length centering inner ring
Da
838.1 mm
Outside Diameter
Di ZT
747 µm
Diameter centring outer ring
IT7
Diameter centring outer ring tolerance
T
4.5 mm
Length centering outer ring
H
56 mm
Height
≈m
60 kg
Weight

Dimensions
ha
44.5 mm
Width outer ring
La
785 mm
Pitchcircle diameter fixing holes outer ring
na
36
Number of fixing holes in outer ring
b
44.5 mm
Width gearing
m
6 mm
Modul of gearing
z
138
Number of teeth
d0
828 mm
Pitch circle diameter gearing
Fz norm
21,300 N
Max. tooth force root fatigue strenght (at a shock factor of 1,2)
Fz max
31,500 N
Max. tooth force against tooth fracture (at a shock factor of 1,35)
da
743 mm
Outside diameter inner ring
0 mm
Outside diameter inner ring upper tolerance
-0.6 mm
Outside diameter inner ring lower tolerance
h
44.5 mm
height of individual ring
dB
14 mm
Fixing bore
Li
698 mm
Pitchcircle diameter fixing holes inner ring
ni
40
Number of fixing holes in inner ring
M12
Tread fixing bore
tG
20 mm
Thread depth oil connector
0.05 mm
Running accuracy A (related to the raceway)
0.05 mm
Running accuracy B (related to the raceway)
0.08 mm
Running accuracy C (related to the raceway)
0.08 mm
Running accuracy D (related to the raceway)

Temperature range
Tmin
-25 °C
Operating temperature min.
Tmax
80 °C
Operating temperature max.

Calculation factors
Ca
275,000 N
Basic dynamic load rating, axial
C0a
970,000 N
Basic static load rating, axial
Cr
195,000 N
Basic dynamic load rating, radial (for radial load only)
C0r
475,000 N
Basic static load rating, radial (for radial load only)
VSPmax
0.04 mm
Maximum bearing preload
VSPmin
0.01 mm
Min. bearing preload
Fr zul
148,700 N
Max. radial load fixing screws (friction locking)

Your current product variant
GearingNNormalized gear teeth on bearing ring
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