15.2 Surface Quality
The surface quality of the supporting surface does not have a direct influence on the function and running behaviour of the guideway, but it does on the static position accuracy. Carriages and guide rails are compressed against the mounting surfaces by the attachment screws with a high level of force. To prevent relaxation of the assembly, a high surface contact ratio is required. This is achieved by means of high surface quality.
The accuracy of the application critically determines the required surface quality of the reference and locating surfaces. It is therefore necessary to ensure the following:
| High-precision applications | max. Ra value of 0.4 |
|---|---|
| Standard applications | max. Ra value of 1.6 |
Note: Surface quality is a critical factor for ensuring the performance and service life of the guideway system. Please select the appropriate surface finish standard based on the accuracy requirements of your application.