12.5 Elastic Deformation and Rigidity of Linear Bearings

Linear Guideways

The total deformation δ_A (i.e. the deformation of the rolling elements in connection with hardened tracks (minimum 58 HRC)) can be derived from the following charts.

Elastic Deformation of Linear Guideways Type R (Rollers)

In relation to the load P per roller

Elastic deformation chart for Type R guideways with rollers

Elastic Deformation of Linear Guideways Type R (Balls)

In relation to the load P per ball

Elastic deformation chart for Type R guideways with balls

Elastic Deformation of Linear Guideways Type RN and RNG

In relation to the load P per roller

Elastic deformation chart for Type RN and RNG guideways

Elastic Deformation of Linear Guideways 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 Types N/O and M/V guideways

Legend:

δ_A = Elastic deformation (µm)

P = Load per rolling element (N)

HRC 58-62 = Standard track hardness range