How to Mount the Rails


      How to Mount the Rails?

   Mounting Design Concept 


Linear Guide Assembly Steps


  Above figure shows a typical example for rail mounting with the features below,

                                                                       1. There are 2 datum planes on the base.
                                                                      2. There is a crosswise datum plane aligned by a thrust screw.
                                                                      3. The table thrust screw is at the master side.


                                                                 ❷Mounting Steps         


Step1. Clean up all the burrs, contamination objects and marks before mounting.

Note:Datum plane is normally covered with antirust. Clean the antirust with detergent

beforehand. It is recommended to spray some low viscosity lubricant to protect the datum plane.


Step2. lace the rail gently on the base and secure it with the thrust screw or other fixtures so that  it contacts the datum plane nicely.Note:Check the alignment of the screw holes before securing.

Forcing to secure the rail to unaligned screw holes will affect the accuracy and quality due over offset.


Step3. Attach the screws to screw holes in the sequence from centre to both ends.Push the rail gently against the datum plane. Fasten the screws in the sequence from centre to both ends slightly harder to make the rail more stable. Push the rail harder against the datum line to enhance the contact.


Step4. Secure the screws with a torque wrench with the appropriate torque selected according to based material.

Recommended rail screw fastening torque 



Step5. Mount the subsidiary rail with the same steps foresaid, and then mount the slides on to the rails individually. Pay attention to assemble all the accessories, such as grease fitting, oil fitting and seals in this stage otherwise it will be difficult to assemble the assemblies afterwards due to limited space.


Step6. Place the table gently on the slides on both master and subsidiary rails.


Step7. Fasten the crosswise thrust screw to secure the table.  Fasten the table screws with the sequence demonstrated in the figure.

Common Mounting Styles

  Common Securing Styles


Use of Butt- Jointed Rail


          When a long rail is ordered, two or more rails can be butt- jointed to the desired length.

           When jointing rails, be sure to match the marked positions correctly as the above figure.

            When two or more linear guides with jointed rails are to be arranged parallel to each other,

 these linear guides will be numbered as the table below:


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