Bearing data
Needle roller / angular contact ball bearings
| Dimension standards | Boundary dimensions: ISO 15:2011 – dimension series 59, except for following inner ring parameters in the NKIB 59 series:
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| Tolerances
For additional information (→ Tolerances) | Normal, except for width of the complete inner ring in the NKIB 59 series: 0/–0,3 mm
Values: ISO 492:2014 (table 1) |
| Internal clearance | Normal (bearings with an inner ring)
Check availability of C2, C3 or C4 clearance classes Values: ISO 5753-1:2009 (table 2) Values are valid for unmounted bearings under zero measuring load. |
| Misalignment |
Contact the SKF application engineering service. The permissible angular misalignment between the shaft and the housing depends on the size and internal design of the bearing, the radial internal clearance in operation and the forces and moments acting on the bearing. Any misalignment increases bearing noise and reduces bearing service life. |
Needle roller / thrust ball bearings
| Dimension standards | Boundary dimensions: DIN 5429-1:2005, except for the bearings in the NX and NX .. Z series that are not standardized. | |
| Tolerances
For additional information (→ Tolerances) |
Values: |
|
| Operating clearance |
Bearings without an inner ring Range slightly less than Normal if recommended tolerances (table 5) applied |
|
| Misalignment | Cannot tolerate any angular misalignment between shaft and housing or between shaft and axial support surfaces in the housing. | |
Needle roller / cylindrical roller thrust bearings
| Dimension standards | Boundary dimensions: DIN 5429-1:2005 | |
| Tolerances
For additional information (→ Tolerances) |
Values: |
|
| Operating clearance |
Bearings without an inner ring Range slightly less than Normal if recommended tolerances (table 5) applied |
|
| Misalignment | Cannot tolerate any angular misalignment between shaft and housing or between shaft and axial support surfaces in the housing. | |
