Floating bearing mountings with standard elements
Guides often cannot be placed in the immediate vicinity of the moving mass, so 2 or more guides are used in parallel and the mass to be moved is positioned between these guides.
In order to mount the mass firmly and without play, it must be firmly bolted to both carriages. Once this has been done, the system is statically overdetermined.
Any deviation in the parallelism or height of the two rails must be absorbed by the elastic deformation of the components and places a load on the guides. In order to minimize this, either a high degree of accuracy is required in the arrangement of the rails, or a possibility is created to compensate for the tolerances.
This possibility of tolerance compensation is achieved by fixed mounting on one side (fixed bearing arrangement) and a displaceable bearing on the second side (floating bearing arrangement).
The fixed/non-locating bearing arrangement is particularly necessary if the position of the guides in relation to each other or that of the component between the guides is variable due to heat or other disruptive influences.
