Dimensions
d(mm)50Bore diameter
D(mm)72Outer diameter
W(mm)12Width
a(mm)14Span
rs min(mm)0.6Minimal edge distance
High-speed hybrid spindle bearing, adjusted, in pairs or sets, contact angle 15°, 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(°)15Contact angle
Connecting dimensions
da h12(mm)55Diameter of shaft shoulder
Da H12(mm)67.5Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
Etk(mm)59.2Injection pitch circle
Etk1(mm)58.4Injection pitch circle
Performance data
Cr(kN)10.5Dynamic load rating, radial
C0r(kN)5.9Static load rating, radial
Cur(kN)0.236Fatigue limit load, radial
nG Grease(min-1)33000Limit speed, grease lubrication
nG Oil(min-1)50000Limit speed, oil lubrication
FV L(N)24Preload force, slight
FV M(N)72Preload force, medium
FV S(N)144Preload force, heavy
ca L(N/µm)32Axial rigidity, slight
ca M(N/µm)49Axial rigidity, medium
ca S(N/µm)66Axial rigidity, heavy
KaE L(N)71Lift-off force, slight
KaE M(N)222Lift-off force, medium
KaE S(N)465Lift-off force, heavy
Mass
kg0.142Mass