Schaeffler Product catalogue - medias
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B7028-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 140  mm   
D 210  mm   
B 33  mm   
a 39,9  mm   
Da 199  mm  Tolerance: H12
da 152  mm  Tolerance: h12
Etk max 169,2  mm   
Etk min 161,6  mm   
Etk1 max 169,2  mm   
Etk1 min 161,6  mm   
r1 min 2  mm   
ra max 2  mm   
ra1 max 1  mm   
rmin 2  mm   
α 15  °  Contact angle
m 3,35  kg  ≈ Mass
Cr 153000  N  Basic dynamic load rating, radial
C0r 114000  N  Basic static load rating, radial
Cur 9100  N  Fatigue limit load, radial
nG Fett 6300  1/min  Limiting speed for grease lubrication

The limiting speeds are based on elastically preloaded single bearings.
nG Öl 10000  1/min  Limiting speed for minimal quantity oil lubrication

The limiting speeds are based on elastically preloaded single bearings.
FV L 866  N  Preload force
FV M 2724  N  Preload force
FV H 5429  N  Preload force
KaE L 2661  N  Lift-off force
KaE M 9007  N  Lift-off force
KaE H 19129  N  Lift-off force
ca L 142  N/µm  Axial rigidity
ca M 237  N/µm  Axial rigidity
ca H 335  N/µm  Axial rigidity
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