Dimensions
d(mm)20Bore diameter
D(mm)42Outer diameter
W(mm)12Width
a(mm)13Span
rs min(mm)0.6Minimal edge distance
r1s min(mm)0.3Minimal 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)25Diameter of shaft shoulder
Da H12(mm)37Diameter of housing shoulder
ra max(mm)0.6Maximal rounding radius
rb max(mm)0.3Maximal rounding radius
Etk(mm)29.1Injection pitch circle
Performance data
Cr(kN)10.6Dynamic load rating, radial
C0r(kN)6.7Static load rating, radial
Cur(kN)0.347Fatigue limit load, radial
nG Grease(min-1)34000Limit speed, grease lubrication
nG Oil(min-1)53000Limit speed, oil lubrication
FV L(N)71Preload force, slight
FV M(N)277Preload force, medium
FV S(N)599Preload force, heavy
ca L(N/µm)51.6Axial rigidity, slight
ca M(N/µm)86.6Axial rigidity, medium
ca S(N/µm)119.2Axial rigidity, heavy
KaE L(N)205Lift-off force, slight
KaE M(N)840Lift-off force, medium
KaE S(N)1870Lift-off force, heavy
Mass
kg0.069Mass