Dimensions
d(mm)50Bore diameter
D(mm)72Outer diameter
W(mm)12Width
a(mm)14Span
rs min(mm)0.6Minimal edge distance
r1s min(mm)0.15Minimal edge distance
Hybrid spindle bearing, adjusted, in pairs or sets, contact angle 15°, one grease/ lubrication groove with two grease/ lubrication bores, two circular grooves with O rings, cage made of laminated fabric, diminished tolerances, rings made of Cronidur® 30, 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
rb max(mm)0.1Maximal rounding radius
Etk(mm)58.9Injection pitch circle
Performance data
Cr(kN)30.1Dynamic load rating, radial
C0r(kN)14.1Static load rating, radial
Cur(kN)1.32Fatigue limit load, radial
nG Grease(min-1)30000Limit speed, grease lubrication
nG Oil(min-1)43000Limit speed, oil lubrication
FV L(N)40Preload force, slight
FV M(N)164Preload force, medium
FV S(N)364Preload force, heavy
ca L(N/µm)38Axial rigidity, slight
ca M(N/µm)67Axial rigidity, medium
ca S(N/µm)96.5Axial rigidity, heavy
KaE L(N)124Lift-off force, slight
KaE M(N)534Lift-off force, medium
KaE S(N)1250Lift-off force, heavy
Mass
kg0.11Mass