Specifications of SKF Bearing W 638/4 X-2RS1
Dimensions
d | 4.0mm | Bore diameter |
D | 10.0mm | Outside diameter |
B | 4.0mm | Width |
d1 | 5.9mm | Shoulder diameter |
d2 | 5.9mm | Recess diameter |
D2 | 8.8mm | Recess diameter |
r1,2 | 0.2mm | Chamfer dimension |
Abutment dimensions
da | 5.6mm | Diameter of shaft abutment |
da | 5.8mm | Diameter of shaft abutment |
Da | 8.8mm | Diameter of housing abutment |
ra | 0.2mm | Radius of shaft or housing fillet |
Calculation data
Basic dynamic load rating | C | 0.553kN |
Basic static load rating | C0 | 0.245kN |
Fatigue load limit | Pu | 0.011kN |
Limiting speed | 36000.0r/min | |
Minimum load factor | kr | 0.02 |
Calculation factor | f0 | 12.3 |
Mass
Mass bearing | 0.0013kg |
Tolerance class
Dimensional tolerances | Normal |
Radial run-out | Normal |