Dimensions
d(mm)20Bore diameter
D(mm)42Outer diameter
W(mm)12Width
a(mm)13Span
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)25Diameter of shaft shoulder
Da H12(mm)37Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
Performance data
Cr(kN)5.9Dynamic load rating, radial
C0r(kN)2.3Static load rating, radial
Cur(kN)0.092Fatigue limit load, radial
nG Grease(min-1)60000Limit speed, grease lubrication
FV L(N)23Preload force, slight
FV M(N)69Preload force, medium
FV S(N)138Preload force, heavy
ca L(N/µm)49Axial rigidity, slight
ca M(N/µm)72.5Axial rigidity, medium
ca S(N/µm)94Axial rigidity, heavy
KaE L(N)67Lift-off force, slight
KaE M(N)207Lift-off force, medium
KaE S(N)421Lift-off force, heavy
Mass
kg0.077Mass