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°, contactless sealed at both sides, cage made of laminated fabric, diminished tolerances, rings made of high-quality roller bearing steel, rolling elements made of silicon nitride
Technical data
*) the unit "B" in the graphics corresponds in English to the unit "W" for "Width".
Contact angle
α(°)25Contact angle
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 Grease(min-1)32000Limit speed, grease 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