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medias® Home Rolling and plain bearings, accessories VLA20 VLA200744-N
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Four point contact bearings VLA200744-N

light series 20, external gear teeth, lip seals on both sides

Four point contact bearings VLA200744-N, light series 20, 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 634  mm 
  Tolerance: +0,6
Da 838,1  mm 
   
 
Di 745,5  mm 
  Tolerance: +0,6
Di ZT 747  mm 
  Valid for bearings with centring (suffix ZT)
Centring lengths (T, t) (see dimension drawing)
Tolerance: +IT8
d0 828  mm 
   
da 742,5  mm 
  Tolerance: -0,6
di ZT 636  mm 
  Valid for bearings with centring (suffix ZT)
Centring lengths (T, t) (see dimension drawing)
Tolerance: +IT8
H 56  mm 
   
La 785  mm 
   
Li 662  mm 
   
m 6  mm 
  Tooth modulus
na 18 
  Number of fixing holes in outer ring
ni 16 
  Number of fixing holes in inner ring
z 138 
  Number of teeth
 
m 54,5  kg 
  Mass
Fr per 74300  N 
  Maximum permissible radial load against friction lock
Fz norm 21300  N 
  Maximum permissible tooth force (dedendum fatigue strength)
Fz max 31500  N 
  Max. permissible tooth force against tooth fracture in dedendum
Ca 211000  N 
  Basic dynamic load rating, axial
C0a 530000  N 
  Basic static load rating, axial
Cr 138000  N 
  Basic dynamic load rating, radial
C0r 198000  N 
  Basic static load rating, radial
   
  4 taper type lubrication nipples, DIN 71412-A S8x1, spaced uniformly on circumference
   
  Bearings are also available without holes in the bearing rings.