Dimensions
d(mm)300Bore diameter
D(mm)420Outer diameter
W(mm)56Width
a(mm)76Span
rs min(mm)3Minimal edge distance
r1s min(mm)3Minimal 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)322Diameter of shaft shoulder
Da H12(mm)398Diameter of housing shoulder
ra max(mm)1.5Maximal rounding radius
rb max(mm)1Maximal rounding radius
Etk(mm)348.6Injection pitch circle
Performance data
Cr(kN)359Dynamic load rating, radial
C0r(kN)504Static load rating, radial
Cur(kN)13.8Fatigue limit load, radial
nG Grease(min-1)3000Limit speed, grease lubrication
nG Oil(min-1)4500Limit speed, oil lubrication
FV L(N)2100Preload force, slight
FV M(N)6770Preload force, medium
FV S(N)13860Preload force, heavy
ca L(N/µm)250Axial rigidity, slight
ca M(N/µm)414Axial rigidity, medium
ca S(N/µm)585Axial rigidity, heavy
KaE L(N)6380Lift-off force, slight
KaE M(N)21900Lift-off force, medium
KaE S(N)47700Lift-off force, heavy
Mass
kg20.4Mass