Schaeffler Product catalogue - medias
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B7218-C-T-P4S


Spindle bearings

adjusted, in pairs or sets, contact angle α = 15°, restricted tolerances

  
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Radial loadAxial load in one directionNot sealedGrease lubricationOil lubrication
 
d 90  mm   
D 160  mm   
B 30  mm   
a 31,8  mm   
Da 147  mm  Tolerance: H12
da 104  mm  Tolerance: h12
Etk max 120  mm   
Etk min 112,1  mm   
Etk1 max 120  mm   
Etk1 min 112,1  mm   
r1 min 2  mm   
ra max 2  mm   
ra1 max 1  mm   
rmin 2  mm   
α 15  °  Contact angle
m 2,2  kg  ≈ Mass
Cr 125000  N  Basic dynamic load rating, radial
C0r 75000  N  Basic static load rating, radial
Cur 7100  N  Fatigue limit load, radial
nG Fett 8500  1/min  Limiting speed for grease lubrication

The limiting speeds are based on elastically preloaded single bearings.
nG Öl 14000  1/min  Limiting speed for minimal quantity oil lubrication

The limiting speeds are based on elastically preloaded single bearings.
FV L 732  N  Preload force
FV M 2280  N  Preload force
FV H 4513  N  Preload force
KaE L 2267  N  Lift-off force
KaE M 7640  N  Lift-off force
KaE H 16156  N  Lift-off force
ca L 109  N/µm  Axial rigidity
ca M 183  N/µm  Axial rigidity
ca H 260  N/µm  Axial rigidity
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