Support arrangement and design
Depending on the assembly design, bearings may be used singly or in matched sets. The operating characteristics of the support are determined by bearing arrangement, preload, and how axial screw displacement is constrained.
Critical support parameters
- Direction and magnitude of the axial load.
- Required axial stiffness.
- Preload.
- Bearing arrangement within the set.
- Rotational and positioning accuracy.
- Ball-screw speed.
- Fits and precision of the mating surfaces.