12.5 Elastic Deformation and Rigidity of Linear Bearings

Linear guideways

The total deformation δ_A (that is the deformation of the rolling element in connection with hardened tracks (min. 58 HRC)) can be deduced from the following diagrams.

Elastic deformation of linear guideways of type R with rollers

The elastic deformation of the linear guideways of type R with rollers

In relation to the load P per roller

Elastic deformation chart for type R linear guideways with rollers

Elastic deformation of linear guideways of type R with balls

The elastic deformation of the linear guideways of type R with balls

In relation to the load P per ball

Elastic deformation chart for type R linear guideways with balls

Elastic deformation of linear guideways for types RN and RNG

The elastic deformation of the linear guideways for type RN and RNG

In relation to the load P per roller

Elastic deformation chart for type RN and RNG linear guideways

Elastic deformation of linear guideways of types N/O and M/V

The elastic deformation of the linear guideways of types N/O and M/V

Upon use with the following types of cages

In relation to the load P per pair of needles

Elastic deformation chart for type N/O and M/V linear guideways

Legend:

δ_A = Elastic deformation (µm)

P = Load per rolling element (N)

min. 58 HRC = Standard track hardness range