Specifications of SKF Bearing 6311 N
Dimensions
d | 55.0mm | Bore diameter |
D | 120.0mm | Outside diameter |
B | 29.0mm | Width |
d1 | 75.34mm | Shoulder diameter |
D2 | 103.7mm | Recess diameter |
D3 | 115.21mm | Diameter of snap ring groove |
D4 | 129.7mm | Outside diameter of snap ring |
b | 3.1mm | Width of snap ring groove |
C | 4.06mm | Distance outer ring from side face to snap ring groove |
r0 | 0.6mm | Bottom radius of snap ring groove |
r1,2 | 2.0mm | Chamfer dimension |
Abutment dimensions
da | 66.0mm | Diameter of shaft abutment |
Da | 109.0mm | Diameter of housing abutment |
Db | 131.0mm | Diameter of snap ring recess in the housing |
ba | 3.5mm | Width of snap ring recess in the housing |
Ca | 6.88mm | Distance from outer ring side face to snap ring back face |
ra | 2.0mm | Radius of shaft or housing fillet |
Calculation data
Basic dynamic load rating | C | 74.1kN |
Basic static load rating | C0 | 45.0kN |
Fatigue load limit | Pu | 1.9kN |
Reference speed | 12000.0r/min | |
Limiting speed | 8000.0r/min | |
Minimum load factor | kr | 0.03 |
Calculation factor | f0 | 13.0 |
Mass
Mass bearing | 1.41kg |
Tolerance class
Dimensional tolerances | P6 |
Radial run-out | Normal |