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 17  mm   
D 30  mm   
B 7  mm   
a 9  mm   
Da 27,5  mm  Tolerance: H12
da 20  mm  Tolerance: h12
r1 min 0,3  mm   
ra max 0,3  mm   
ra1 max 0,1  mm   
rmin 0,3  mm   
α 25  °  Contact angle
m 0,016  kg  ≈ Mass
Cr 5100  N  Basic dynamic load rating, radial
C0r 2030  N  Basic static load rating, radial
Cur 164  N  Fatigue limit load, radial
nG Fett 63000  1/min  Limiting speed for grease lubrication

The limiting speeds are based on elastically preloaded single bearings.
FV L 12  N  Preload force
FV M 65  N  Preload force
FV H 154  N  Preload force
KaE L 34  N  Lift-off force
KaE M 193  N  Lift-off force
KaE H 466  N  Lift-off force
ca L 33,4  N/µm  Axial rigidity
ca M 61,9  N/µm  Axial rigidity
ca H 86,4  N/µm  Axial rigidity
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