Dimensions
d(mm)20Bore diameter
D(mm)52Outer diameter
W(mm)15Width
a(mm)12Span
rs min(mm)1.1Minimal edge distance
r1s min(mm)0.6Minimal edge distance
Spindle bearing, adjusted, in pairs or sets, contact angle 15°, 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(°)15Contact angle
Connecting dimensions
da h12(mm)27Diameter of shaft shoulder
Da H12(mm)45Diameter of housing shoulder
ra max(mm)1.1Maximal rounding radius
rb max(mm)0.6Maximal rounding radius
Etk(mm)33.4Injection pitch circle
Etk1(mm)31.2Injection pitch circle
Performance data
Cr(kN)18.5Dynamic load rating, radial
C0r(kN)13.3Static load rating, radial
Cur(kN)0.694Fatigue limit load, radial
nG Grease(min-1)26000Limit speed, grease lubrication
nG Oil(min-1)42000Limit speed, oil lubrication
FV L(N)90Preload force, slight
FV M(N)180Preload force, medium
FV S(N)370Preload force, heavy
ca L(N/µm)34Axial rigidity, slight
ca M(N/µm)45Axial rigidity, medium
ca S(N/µm)70Axial rigidity, heavy
KaE L(N)288Lift-off force, slight
KaE M(N)608Lift-off force, medium
KaE S(N)1350Lift-off force, heavy
Mass
kg0.15Mass