Dimensions
d(mm)170Bore diameter
D(mm)310Outer diameter
W(mm)52Width
a(mm)82Span
rs min(mm)4Minimal edge distance
r1s min(mm)4Minimal 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)205Diameter of shaft shoulder
Da H12(mm)275Diameter of housing shoulder
ra max(mm)3Maximal rounding radius
rb max(mm)3Maximal rounding radius
Etk(mm)228.6Injection pitch circle
Performance data
Cr(kN)281Dynamic load rating, radial
C0r(kN)320Static load rating, radial
Cur(kN)10.9Fatigue limit load, radial
nG Grease(min-1)3600Limit speed, grease lubrication
nG Oil(min-1)5300Limit speed, oil lubrication
FV L(N)2880Preload force, slight
FV M(N)9185Preload force, medium
FV S(N)18735Preload force, heavy
ca L(N/µm)455Axial rigidity, slight
ca M(N/µm)702Axial rigidity, medium
ca S(N/µm)936Axial rigidity, heavy
KaE L(N)8420Lift-off force, slight
KaE M(N)27600Lift-off force, medium
KaE S(N)58000Lift-off force, heavy
Mass
kg15.6Mass