Dimensions
d(mm)20Bore diameter
D(mm)52Outer diameter
W(mm)15Width
a(mm)16Span
rs min(mm)1.1Minimal edge distance
r1s min(mm)0.6Minimal edge distance
Spindle bearing,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)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)17.9Dynamic load rating, radial
C0r(kN)12.9Static load rating, radial
Cur(kN)0.67Fatigue limit load, radial
nG Grease(min-1)23000Limit speed, grease lubrication
nG Oil(min-1)38000Limit speed, oil lubrication
FV L(N)160Preload force, slight
FV M(N)310Preload force, medium
FV S(N)630Preload force, heavy
ca L(N/µm)80Axial rigidity, slight
ca M(N/µm)110Axial rigidity, medium
ca S(N/µm)140Axial rigidity, heavy
KaE L(N)477Lift-off force, slight
KaE M(N)942Lift-off force, medium
KaE S(N)1980Lift-off force, heavy
Mass
kg0.15Mass