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medias® Home Rolling and plain bearings, accessories VA VA250309-N
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Four point contact bearings VA250309-N

with external gear teeth, lip seals on both sides

Four point contact bearings VA250309-N, with external gear teeth, lip seals on both sides
Radial loadAxial load in one directionAxial load in two directionsMoments about all axesSealed on both sidesGrease lubrication
 
di 235  mm 
   
Da 408,4  mm 
   
 
b 52,5  mm 
   
Di 308  mm 
   
Di ZT 310  mm 
  Valid for bearings with centring (suffix ZT)
Centring lengths (T, t) (see dimension drawing)
Tolerance: +IT8
d0 400  mm 
   
da 310  mm 
   
dB 13  mm 
   
di ZT 237  mm 
  Valid for bearings with centring (suffix ZT)
Centring lengths (T, t) (see dimension drawing)
Tolerance: +IT8
H 60  mm 
   
h 52,5  mm 
   
La 359  mm 
   
Li 259  mm 
   
m 5  mm 
  Tooth modulus
na 24 
  Number of fixing holes in outer ring
ni 24 
  Number of fixing holes in inner ring
T 3  mm 
   
t 8  mm 
   
z 80 
  Number of teeth
 
m 29,5  kg 
  Mass
Fr per 99100  N 
  Maximum permissible radial load against friction lock
Fz norm 12900  N 
  Maximum permissible tooth force (dedendum fatigue strength)
Fz max 18800  N 
  Max. permissible tooth force against tooth fracture in dedendum
Ca 325000  N 
  Basic dynamic load rating, axial
C0a 650000  N 
  Basic static load rating, axial
Cr 215000  N 
  Basic dynamic load rating, radial
C0r 295000  N 
  Basic static load rating, radial
  0,06 - 0,25 
  Radial clearance
  0,1 - 0,41 
  Axial tilting clearance
   
  4 taper type lubrication nipples, DIN 71412, spaced approximately uniformly on circumference