Dimensions
d(mm)45Bore diameter
D(mm)75Outer diameter
W(mm)16Width
a(mm)22Span
rs min(mm)1Minimal edge distance
High-speed hybrid spindle bearing, adjusted, in pairs or sets, contact angle 25°, 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)51Diameter of shaft shoulder
Da H12(mm)69Diameter of housing shoulder
ra max(mm)1Maximal rounding radius
Etk(mm)58.2Injection pitch circle
Etk1(mm)57.2Injection pitch circle
Performance data
Cr(kN)12Dynamic load rating, radial
C0r(kN)6.5Static load rating, radial
Cur(kN)0.259Fatigue limit load, radial
nG Grease(min-1)30000Limit speed, grease lubrication
nG Oil(min-1)48000Limit speed, oil lubrication
FV L(N)49Preload force, slight
FV M(N)147Preload force, medium
FV S(N)294Preload force, heavy
ca L(N/µm)85Axial rigidity, slight
ca M(N/µm)126Axial rigidity, medium
ca S(N/µm)163.5Axial rigidity, heavy
KaE L(N)142Lift-off force, slight
KaE M(N)431Lift-off force, medium
KaE S(N)876Lift-off force, heavy
Mass
kg0.26Mass