Dimensions
d(mm)20Bore diameter
D(mm)37Outer diameter
W(mm)9Width
a(mm)11Span
rs min(mm)0.3Minimal 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)24Diameter of shaft shoulder
Da H12(mm)33.5Diameter of housing shoulder
ra max(mm)0.3Maximal rounding radius
Etk(mm)27.3Injection pitch circle
Etk1(mm)26.7Injection pitch circle
Performance data
Cr(kN)3.7Dynamic load rating, radial
C0r(kN)1.6Static load rating, radial
Cur(kN)0.083Fatigue limit load, radial
nG Grease(min-1)53000Limit speed, grease lubrication
nG Oil(min-1)80000Limit speed, oil lubrication
FV L(N)21Preload force, slight
FV M(N)63Preload force, medium
FV S(N)126Preload force, heavy
ca L(N/µm)37Axial rigidity, slight
ca M(N/µm)55Axial rigidity, medium
ca S(N/µm)72.8Axial rigidity, heavy
KaE L(N)61Lift-off force, slight
KaE M(N)186Lift-off force, medium
KaE S(N)384Lift-off force, heavy
Mass
kg0.04Mass