Permissible Compressive Axial Load Fperm
Permissible Compressive Axial Load
*) Directionally stable mounting
Bearing Arrangement Types
The permissible axial load can be determined from the chart based on screw bearing arrangement, nominal diameter d0 × lead P, and screw length Ln.
For compressive axial load Fk, the chart includes a threefold safety factor (ν = 3).
The static load rating C0am is the load limit that causes plastic deformation of 10-4 × ball diameter under static conditions.
See data sheets for C0am
Steps for Increasing the Permissible Compressive Axial Load
Steps for Increasing the Permissible Compressive Axial Load
Use Bearing Arrangement D
Double-end fixed arrangement provides the highest axial load capacity
Apply Tensile Load
Apply tensile load to the screw in arrangement A or C cases
Increase Nominal Diameter
Larger diameter can withstand higher compressive loads
Reduce Compressive Load
Share load through hydraulic or counterweight methods
Bearing Arrangement Reference Table
Bearing Arrangement Reference
| Arrangement | Description | Characteristics |
|---|---|---|
| A | Fixed-Free | Suitable for shorter screws |
| B | Fixed-Supported | Medium load capacity |
| C | Supported-Supported | Allows thermal expansion |
| D | Fixed-Fixed | Highest axial load capacity |