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)0.15Minimal edge distance
Spindle bearing, adjusted, in pairs or sets, contact angle 25°, contactless sealed at both sides, greased/ lubricated, 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)0.1Maximal rounding radius
Performance data
Cr(kN)18Dynamic load rating, radial
C0r(kN)14.2Static load rating, radial
Cur(kN)0.742Fatigue limit load, radial
nG Grease(min-1)17000Limit speed, grease lubrication
FV L(N)117Preload force, slight
FV M(N)480Preload force, medium
FV S(N)1060Preload force, heavy
ca L(N/µm)103Axial rigidity, slight
ca M(N/µm)175Axial rigidity, medium
ca S(N/µm)242Axial rigidity, heavy
KaE L(N)345Lift-off force, slight
KaE M(N)1450Lift-off force, medium
KaE S(N)3320Lift-off force, heavy
Mass
kg0.129Mass