Schaeffler Product catalogue - medias
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Spindle bearings

adjusted, in pairs or sets, contact angle α = 15°, with ceramic balls, lip seals on both sides, non-contact, restricted tolerances

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Radial loadAxial load in one directionSealed on both sidesLifetime lubrication, freedom from maintenanceGrease lubrication
d 12  mm   
D 28  mm   
B 8  mm   
a 6,7  mm   
Da 24,5  mm  Tolerance: H12
da 16,5  mm  Tolerance: h12
r1 min 0,3  mm   
ra max 0,3  mm   
ra1 max 0,1  mm   
rmin 0,3  mm   
α 15  °  Contact angle
m 0,021  kg  ≈ Mass
Cr 4700  N  Basic dynamic load rating, radial
C0r 1750  N  Basic static load rating, radial
Cur 141  N  Fatigue limit load, radial
nG Fett 85000  1/min  Limiting speed for grease lubrication

The limiting speeds are based on elastically preloaded single bearings.
FV L 8  N  Preload force
FV M 36  N  Preload force
FV H 82  N  Preload force
KaE L 22  N  Lift-off force
KaE M 114  N  Lift-off force
KaE H 274  N  Lift-off force
ca L 11,3  N/µm  Axial rigidity
ca M 21,4  N/µm  Axial rigidity
ca H 31,1  N/µm  Axial rigidity
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