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°, one grease/ lubrication groove with two grease/ lubrication bores, two circular grooves with O rings, cage made of laminated fabric, diminished tolerances, rings made of Cronidur® 30, 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
DLR dimension
NB(mm)1.5Groove width
NA(mm)2.2Groove distance
SB(mm)1.4Width of oil groove
SA(mm)6.6Distance of oil groove
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)9.5Dynamic load rating, radial
C0r(kN)2.3Static load rating, radial
Cur(kN)0.219Fatigue limit load, radial
nG Oil(min-1)100000Limit speed, oil 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