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31311-H FAG


d Bore diameter 55 mm
D Outside diameter 120 mm
B Width, inner ring 29 mm
C Width, outer ring 21 mm
T Width, total 31,5 mm
Cr Basic dynamic load rating, radial 117.000 N
C0r Basic static load rating, radial 139.000 N
Cur Fatigue load limit, radial 16.700 N
nG Limiting speed 4.720 1/min
nϑr Thermal speed rating 4.100 1/min
≈m Weight 1,56 kg
da max Maximum diameter of shaft shoulder 68 mm
db min Minimum diameter of shaft shoulder 65 mm
Da max Maximum diameter of housing shoulder 110 mm
Ca min Minimum axial space 4 mm
Cb min Minimum axial space 10,5 mm
ra max Maximum fillet radius of shaft 2,5 mm
r1, 2 min Minimum chamfer dimension of inner ring back face 2,5 mm
r3, 4 min Minimum chamfer dimension of outer ring back face 2 mm
a Distance between the apexes of the pressure cones 39 mm
d1 Guidance rib diameter of inner ring 90,2 mm
Tmin Operating temperature min. -30 °C
Tmax Operating temperature max. 120 °C
e Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y 0,83
Y Dynamic axial load factor 0,73
Y0 Static axial load factor 0,4
Tolerance class Normal (ISO 492:2014) PN
Heat treatment Standard
Cage Sheet steel cage, roller-guided Standard
Internal design Standard
Quality level H H
Number of rows Single-row 1