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medias® Home Rolling and plain bearings, accessories 303 30311-A
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Tapered roller bearings 30311-A

main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

Tapered roller bearings 30311-A, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
Radial loadAxial load in one directionNot sealedGrease lubricationOil lubrication
Tapered roller bearings 30311-A, main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs
 
d 55  mm 
   
D 120  mm 
   
T 31,5  mm 
   
 
a 25  mm 
   
B 29  mm 
   
C 25  mm 
   
Ca min 4  mm 
   
Cb min 6,5  mm 
   
Da max 110  mm 
   
Da min 104  mm 
   
Db min 111  mm 
   
d1 84,7  mm 
   
da max 71  mm 
   
db min 65  mm 
   
r1, 2 min 2,5  mm 
   
r3, 4 min 2  mm 
   
ra max 2,5  mm 
   
rb max 2  mm 
   
 
m 1,8  kg 
  Mass
Cr 151000  N 
  Basic dynamic load rating, radial
C0r 173000  N 
  Basic static load rating, radial
e 0,35 
   
Y 1,74 
   
Y0 0,96 
   
Cur 20600  N 
  Fatigue limit load, radial
nG 6200  1/min 
  Limiting speed
nB 4500  1/min 
  Reference speed
  T2FB055 
  Comparative designation to DIN ISO 355