Dimensions
d(mm)45Bore diameter
D(mm)68Outer diameter
W(mm)12Width
a(mm)19Span
rs min(mm)0.6Minimal edge distance
High-speed hybrid spindle bearing, adjusted, in pairs or sets, contact angle 25°, one grease/ lubrication groove with two grease/ lubrication bores, two circular grooves with O rings, cage made of laminated fabric, diminished tolerances, rings and rolling elements made of high-quality roller bearing steel
Technical data
*) the unit "B" in the graphics corresponds in English to the unit "W" for "Width".
Contact angle
α(°)25Contact angle
DLR dimension
NB(mm)1.5Groove width
NA(mm)2.8Groove distance
SB(mm)1.6Width of oil groove
SA(mm)6.6Distance of oil groove
Connecting dimensions
da h12(mm)50Diameter of shaft shoulder
Da H12(mm)63.5Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
Performance data
Cr(kN)9.6Dynamic load rating, radial
C0r(kN)5.2Static load rating, radial
Cur(kN)0.206Fatigue limit load, radial
nG Oil(min-1)50000Limit speed, oil lubrication
FV L(N)38Preload force, slight
FV M(N)114Preload force, medium
FV S(N)228Preload force, heavy
ca L(N/µm)77Axial rigidity, slight
ca M(N/µm)114Axial rigidity, medium
ca S(N/µm)148Axial rigidity, heavy
KaE L(N)110Lift-off force, slight
KaE M(N)339Lift-off force, medium
KaE S(N)688Lift-off force, heavy
Mass
kg0.133Mass