Free space on both sides of the bearing
Design of bearing arrangements
- the value Ca (→ product tables)
- the expected axial displacement of the bearing rings from the central position during operation
- the displacement of the rings caused by misalignment
For additional information, refer to Axial displacement.
Calculating the free space required on both sides of the bearing
Careq = Ca + 0,5 (s + β k1 B)
||=||bearing width [mm]
|Ca||=||minimum width of space required on both sides of the bearing [mm] (→ product tables)
|Careq||=||width of space required on both sides of the bearing [mm]
|k1||=||misalignment factor (→ product tables)|
|s||=||relative axial displacement of rings, e.g. thermal shaft expansion [mm]|
- an adapter sleeve on plain or stepped shafts (fig. 4 or fig. 5)
- a withdrawal sleeve on stepped shafts (fig. 6)
CARB bearings on an adapter sleeve:
- Adapter sleeves are supplied complete with a locking device.
- Use appropriate SKF adapter sleeve assemblies to prevent the locking device from interfering with the cage (→ product table).
- Check axial displacement carefully, as it could be that s1 (→ product tables) cannot be fully realized.
For additional information about sleeves, refer to Bearing accessories.
SKF standard housings are available for almost all CARB bearings in the C 30, C 31, C 22 and C 23 series.
Two arrangements are possible when using standard housings, without requiring special considerations:
- CARB bearings with a tapered bore on an adapter sleeve and a plain shaft
- CARB bearings with a cylindrical bore on a stepped shaft
The comprehensive assortment of SKF bearing housings is provided in the following tables: