Dimensions
d(mm)50Bore diameter
D(mm)72Outer diameter
W(mm)12Width
a(mm)20Span
rs min(mm)0.6Minimal edge distance
r1s min(mm)0.3Minimal edge distance
Spindle bearing for higher speeds, 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)55Diameter of shaft shoulder
Da H12(mm)67.5Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
rb max(mm)0.3Maximal rounding radius
Etk(mm)59.2Injection pitch circle
Performance data
Cr(kN)14.8Dynamic load rating, radial
C0r(kN)8.4Static load rating, radial
Cur(kN)0.72Fatigue limit load, radial
nG Grease(min-1)25000Limit speed, grease lubrication
nG Oil(min-1)38000Limit speed, oil lubrication
FV L(N)106Preload force, slight
FV M(N)278Preload force, medium
FV S(N)580Preload force, heavy
ca L(N/µm)88Axial rigidity, slight
ca M(N/µm)124Axial rigidity, medium
ca S(N/µm)164Axial rigidity, heavy
KaE L(N)305Lift-off force, slight
KaE M(N)810Lift-off force, medium
KaE S(N)1720Lift-off force, heavy
Mass
kg0.12Mass