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°, 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)25Diameter of shaft shoulder
Da H12(mm)37Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
Etk(mm)29.8Injection pitch circle
Etk1(mm)29Injection pitch circle
Performance data
Cr(kN)5.9Dynamic load rating, radial
C0r(kN)2.5Static load rating, radial
Cur(kN)0.128Fatigue limit load, radial
nG Grease(min-1)48000Limit speed, grease lubrication
nG Oil(min-1)75000Limit speed, oil lubrication
FV L(N)34Preload force, slight
FV M(N)102Preload force, medium
FV S(N)204Preload force, heavy
ca L(N/µm)49.3Axial rigidity, slight
ca M(N/µm)73.5Axial rigidity, medium
ca S(N/µm)96Axial rigidity, heavy
KaE L(N)98Lift-off force, slight
KaE M(N)299Lift-off force, medium
KaE S(N)610Lift-off force, heavy
Mass
kg0.08Mass