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°, 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
Connecting dimensions
da h12(mm)50Diameter of shaft shoulder
Da H12(mm)63.5Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
Etk(mm)54.7Injection pitch circle
Etk1(mm)53.9Injection pitch circle
Performance data
Cr(kN)9.6Dynamic load rating, radial
C0r(kN)5.6Static load rating, radial
Cur(kN)0.286Fatigue limit load, radial
nG Grease(min-1)26000Limit speed, grease lubrication
nG Oil(min-1)40000Limit speed, oil lubrication
FV L(N)55Preload force, slight
FV M(N)165Preload force, medium
FV S(N)330Preload force, heavy
ca L(N/µm)77.7Axial rigidity, slight
ca M(N/µm)115.5Axial rigidity, medium
ca S(N/µm)151Axial rigidity, heavy
KaE L(N)159Lift-off force, slight
KaE M(N)487Lift-off force, medium
KaE S(N)992Lift-off force, heavy
Mass
kg0.14Mass