Schaeffler Product catalogue - medias
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Spindle bearings

adjusted, in pairs or sets, contact angle α = 25°, 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 20  mm   
D 37  mm   
B 9  mm   
a 11,1  mm   
Da 33,5  mm  Tolerance: H12
da 24  mm  Tolerance: h12
r1 min 0,3  mm   
ra max 0,3  mm   
ra1 max 0,15  mm   
rmin 0,3  mm   
α 25  °  Contact angle
m 0,034  kg  ≈ Mass
Cr 7000  N  Basic dynamic load rating, radial
C0r 2950  N  Basic static load rating, radial
Cur 236  N  Fatigue limit load, radial
nG Fett 53000  1/min  Limiting speed for grease lubrication

The limiting speeds are based on elastically preloaded single bearings.
FV L 20  N  Preload force
FV M 98  N  Preload force
FV H 223  N  Preload force
KaE L 58  N  Lift-off force
KaE M 289  N  Lift-off force
KaE H 678  N  Lift-off force
ca L 42,5  N/µm  Axial rigidity
ca M 75,3  N/µm  Axial rigidity
ca H 104  N/µm  Axial rigidity
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