A linear guideway is a system which helps with the movement and supporting of the load of a piece of equipment in a linear fashion, either vertically or horizontally. We have a high load, high precision, gothic arc profile linear guide system to DIN 645 interchangeable with other major competitors systems. Miniature versions of this system are also stocked in hardened stainless steel.
As specialists in linear motion systems we offer you a choice of materials and sizes. So whether you need lightweight aluminium rails for use in aviation applications or stainless steel components for when exposure to water or corrosive chemicals is a factor, our knowledgable technical engineers are always on hand to provide assistance.
Make sure you request a free Linear Motion Handbook here and utilise our free CAD to help you save time planning your projects.
Our anodised aluminium linear guideways offer a 60% weight reduction over standard steel or stainless steel. They contain hardened stainless steel raceways for added durability. 15, 20 and 25mm versions available. Compatible with standard carriages (e.g. L1016.F) or special aluminium carriages L1018.F and L1018.U.
X-rails are highly cost-effective systems for linear motion. Shown here in zinc-plated steel (L1970) but also available in stainless steel (L1971) for added corrosion resistance. For more information, see our X-rail technical page or our catalogue. Excellent for applications such as drawers, protective screens, battery casings etc.
Carriages for linear guideway shafts with supports. Available in many configurations.
Hardened steel linear shafts with h6 standard tolerance. Special tolerances by request. 5 - 60mm diameter.
Linear ball bushings for use with linear shafts. Open, closed or adjustable versions in stock. Superball variation with higher load rating and longer service life also available.
Stainless steel body and balls (AISI 440C) with either a resin (POM) or stainless steel (AISI 316) retainer. Supplied with nitrile rubber end seals. Flanged and long versions available.
Easy slide high-load guideways come in sizes 28, 35, 43 or 63. They are made from zinc-plated steel with induction-hardened steel raceways.
The following drawings illustrate some assembly examples for rail/carriage combinations corresponding to the structure of various machine frames.
The given radii and shoulder heights in the table must be observed when assembling rails and carriages on the stop edges to ensure perfect seating of carriages or guideways.
|15||0,6||3,1||5||M4 x 16|
|20||0,9||4,3||6||M5 x 20|
|25||1,1||5,6||7||M6 x 25|
|30||1,4||6,8||8||M8 x 30|
|35||1,4||7,3||9||M8 x 30|
|45||1,6||8,7||11||M12 x 40|
|55||1,6||11,8||12||M14 x 45|
Values in mm. HR* is the maximum height when using side seal on carriage.
The maximum permissible deviations of the rail surfaces for assembly are given in the following drawing and the table below.
|Size||Permissible tolerance for parallelism P1 μ|
|P2 = L1 x (calculation factor)Calculator factor (x) P2 μ|
The bolt sizes to be used and optimum tightening torques for rail assembly are listed in the table below.
|Bolt||Tightening torque Mt Nm|
|Tightening torque Mt Nm|
Fixing guide rails 1
Whet the assembly surface with a whetstone and also remove burrs, unevenness and dirt. Note: All linear guides are preserved with anti-corrosion oil at the factory. This protection must be removed before installation. In doing so, please ensure that the surfaces are coated with low-viscosity oil for the purpose of further protection against corrosion.
Fixing guide rails 2
Carefully lay the guide rail on the assembly surface and slightly tighten the fixing screws so that the guide rail lightly touches the assembly surface (align the guide rail along the shoulder edge of the assembly surface). Note: The fixing screws of the linear guide must be clean. Check if the fixing holes are located in the correct place when you insert the bolts. A forced tightening of a fixing screw in an off set hole can negatively aff ect accuracy.
Fixing guide rails 2 continued
Fixing guide rails 3
Tighten the thrust bolts on the guide rail until there is close contact on the side stop surface.
Fixing guide rails 4
Tighten the fixing screws with a torque wrench to the prescribed torque. Note: For a high degree of accuracy, the
fixing screws of the guide rail must be tightened in sequence outward from the centre.
Fixing guide rails 5
Assemble the other rails in the same manner to complete the installation of the guide rails.
Table assembly 1
Set the table carefully on the carriage and tighten the fixing screws only lightly.
Table assembly 2
Press the carriage on the main guide side with the thrust bolts against the shoulder edge of the table and position the table.
Table assembly 3
Tighten the fixing screws on the main side and the lateral side completely tight to finish the installation. Note: To attach the table uniformly, tighten the fixing screws diagonally (1, 2, 3, 4). This method saves time when straightening the guide rail and makes the manufacture of positioning pins unnecessary, which considerably reduces assembly time.
Guide rails longer than the one part maximum length are put together from two or more rails. When putting guide rails together, ensure the register marks are positioned correctly.
Manual rail clamps
The manual rail clamps are used alongside the standard flanged or unflanged rail carriages. When selecting ensure:
a) the rail clamp suits the rail that you are using.
b) that the total assembly height of the rail clamp is the same as that of the rail carriage L1016.U or L1016.F.