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31308-H FAG


d Bore diameter 40 mm
D Outside diameter 90 mm
B Width, inner ring 23 mm
C Width, outer ring 17 mm
T Width, total 25,25 mm
Cr Basic dynamic load rating, radial 72.200 N
C0r Basic static load rating, radial 83.000 N
Cur Fatigue load limit, radial 9.700 N
nG Limiting speed 6.400 1/min
nϑr Thermal speed rating 5.100 1/min
≈m Weight 0,73 kg
da max Maximum diameter of shaft shoulder 51 mm
db min Minimum diameter of shaft shoulder 49 mm
Da max Maximum diameter of housing shoulder 81 mm
Ca min Minimum axial space 4 mm
Cb min Minimum axial space 8 mm
ra max Maximum fillet radius of shaft 2 mm
r1, 2 min Minimum chamfer dimension of inner ring back face 2 mm
r3, 4 min Minimum chamfer dimension of outer ring back face 1,5 mm
a Distance between the apexes of the pressure cones 30 mm
d1 Guidance rib diameter of inner ring 69,9 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