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ZKLF1255-2Z-XL INA

Axial angular contact ball bearings ZKLF..-2Z, double direction, for screw mounting, gap seals on both sides


d Bore diameter 12 mm
D Outside diameter 55 mm
B Width 25 mm
Ca Basic dynamic load rating, axial 18.800 N
C0a Basic static load rating, axial 25.000 N
Cua Fatigue load limit, axial 1.520 N
nG Grease Limiting speed for grease lubrication 12.000 1/min
nϑ Thermally safe operating speed 7.600 1/min
MR Bearing frictional torque 0,08 Nm
≈m Weight 0,359 kg
da min Minimum diameter shaft 16 mm
na Number of holes in adjacent construction 3
ta Pitch separation angle of holes in adjacent construction 120 °
d1 Rib diameter inner ring 25 mm
rmin Minimum chamfer dimension 0,3 mm
r1 min Minimum chamfer dimension 0,6 mm
J Pitch circle diameter fixing holes 42 mm
d2 Fixing holes diameter 6,8 mm
b Width of extraction slot 3 mm
I Distance of extraction slot 17 mm
n Pitch quantity of fixing holes 3
t Pitch separation angle of fixing holes 120 °
a Contact angle 60 °
Tmin Operating temperature min. -30 °C
Tmax Operating temperature max. 120 °C
caL Rigidity axial 375 N/µm
ckL Tilting rigidity 50 Nm/mrad
Mm Mass moment of inertia 0,068 kg * cm²
MA Tightening torque for the recommended INA precision locknut 8 Nm
Sealing Minimal gap seals on both sides 2Z
Tolerance class Standard