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INA
VA250309-N-VSP
Slewing ring, four Point contact bearings, external gear VA250309-N-VSP
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Main Dimensions & Performance Data
di
235 mm
Bore Diameter
H
60 mm
Height
Da
408.4 mm
Outside Diameter
Di ZT
310 mm
Diameter centring outer ring
IT8
Diameter centring outer ring tolerance
T
3 mm
Length centering outer ring
t
8 mm
Length centering inner ring
ha
52.5 mm
Width outer ring
hi
52.5 mm
height of inner ring
0.06 mm
Normal radial clearance min.
0.25 mm
Normal radial clearance max.
0.1 mm
Normal axial clearance min.
0.41 mm
Normal axial clearance max.
≈m
29.5 kg
Weight

Dimensions
Di
308 mm
Inner diameter outer ring
da
310 mm
Outside diameter inner ring
ni
24
Number of fixing holes in inner ring
Li
259 mm
Pitchcircle diameter fixing holes inner ring
dB
13 mm
Fixing bore
na
24
Number of fixing holes in outer ring
La
359 mm
Pitchcircle diameter fixing holes outer ring
Fr zul
99,100 N
Max. radial load fixing screws (friction locking)
d0
400 mm
Pitch circle diameter gearing
m
5 mm
Modul of gearing
z
80
Number of teeth
b
52.5 mm
Width gearing
Fz norm
12,900 N
Max. tooth force root fatigue strenght (at a shock factor of 1,2)
Fz max
18,800 N
Max. tooth force against tooth fracture (at a shock factor of 1,35)

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

Calculation factors
Ca
255,000 N
Basic dynamic load rating, axial
C0a
640,000 N
Basic static load rating, axial
Cr
232,000 N
Basic dynamic load rating, radial
C0r
295,000 N
Basic static load rating, radial

Your current product variant
GearingNNormalized gear teeth on bearing ring
PreloadVSPBearing with preload
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