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Date: 2016-08-22

INA VSA250855-N bearing stock, Dimensions, Drawing

Type:  
 INA Slewing rings
di
  755  
 
Da
  997  
 
Di
  853  
 
Di ZT
  855  
Valid for bearings with centring (suffix ZT)
Centring lengths (T, t) (see dimension drawing)
Tolerance: +IT8
d0
  981  
 
da
  857  
 
di ZT
  757  
Valid for bearings with centring (suffix ZT)
Centring lengths (T, t) (see dimension drawing)
Tolerance: +IT8
H
  80  
 
La
  916  
 
Li
  795  
 
m
  9  
Tooth modulus
nB
  28  
Number of fixing holes per ring
z
  109  
Number of teeth
m
  145  
Mass
Fr per
  338800  
Maximum permissible radial load against friction lock
Fz norm
  55100  
Maximum permissible tooth force (dedendum fatigue strength)
Fz max
  80200  
Max. permissible tooth force against tooth fracture in dedendum
Ca
  485000  
Basic dynamic load rating, axial
C0a
  2550000  
Basic static load rating, axial
Cr
  315000  
Basic dynamic load rating, radial
C0r
  1150000  
Basic static load rating, radial
  0,03 - 0,13  
  0,03 - 0,13  
Radial clearance
  0,05 - 0,24  
  0,05 - 0,24  
Axial tilting clearance
4 taper type lubrication nipples, DIN 71412-A M10x1, spaced uniformly on circumference



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