Specifications of SKF Bearing W 637/4 XR-2Z
Dimensions
d | 4.0mm | Bore diameter |
D | 8.0mm | Outside diameter |
B | 3.0mm | Width |
d1 | 5.0mm | Shoulder diameter |
D2 | 7.4mm | Recess diameter |
D3 | 9.2mm | Flange diameter |
C | 0.6mm | Flange width |
r1,2 | 0.1mm | Chamfer dimension |
Abutment dimensions
da | 4.8mm | Diameter of shaft abutment |
da | 4.9mm | Diameter of shaft abutment |
ra | 0.1mm | Radius of shaft or housing fillet |
Calculation data
Basic dynamic load rating | C | 0.225kN |
Basic static load rating | C0 | 0.072kN |
Fatigue load limit | Pu | 0.003kN |
Reference speed | 150000.0r/min | |
Limiting speed | 75000.0r/min | |
Minimum load factor | kr | 0.02 |
Calculation factor | f0 | 7.2 |
Mass
Mass bearing | 0.000613kg |
Tolerance class
Dimensional tolerances | Normal |
Radial run-out | Normal |