Dimensions
d(mm)25Bore diameter
D(mm)52Outer diameter
W(mm)15Width
a(mm)17Span
rs min(mm)1Minimal edge distance
r1s min(mm)0.6Minimal edge distance
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)31.5Diameter of shaft shoulder
Da H12(mm)45.5Diameter of housing shoulder
ra max(mm)1Maximal rounding radius
rb max(mm)0.6Maximal rounding radius
Etk(mm)36.3Injection pitch circle
Performance data
Cr(kN)15.9Dynamic load rating, radial
C0r(kN)8.3Static load rating, radial
Cur(kN)0.329Fatigue limit load, radial
nG Grease(min-1)32000Limit speed, grease lubrication
nG Oil(min-1)48000Limit speed, oil lubrication
FV L(N)58Preload force, slight
FV M(N)250Preload force, medium
FV S(N)562Preload force, heavy
ca L(N/µm)61.5Axial rigidity, slight
ca M(N/µm)105Axial rigidity, medium
ca S(N/µm)145Axial rigidity, heavy
KaE L(N)165Lift-off force, slight
KaE M(N)750Lift-off force, medium
KaE S(N)1728Lift-off force, heavy
Mass
kg0.122Mass