Linear technology

Industrial linear guides are highly prominent devices in the industrial sector, which is constantly evolving to carry out precise and high-quality procedures.

What are linear guides?

When we talk about linear guides, we are also referring to the general category of linear technology. Industrial linear guides are designed as guiding systems in machines and other tools to enable a translational motion between two parts with minimal friction loss.

They are used in machines that require high precision in their processes, as well as high load capacity.

For this reason, they are essential in the industrial sector, particularly in modern industrial automation or food processing equipment.

Linear technology in the industry has several advantages, including high load capacity and precision.

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Linear bearings

Linear bearings are rolling elements that have translational movements. They consist of a plastic cage combined with hardened steel rolling elements that guide the assembly of balls. Among the most common types of linear bearings are ball linear bearings. Ball linear bearings offer the lowest friction and are manufactured with hardened and ground shafts. The contact area of these bearings is so small that it allows for very low friction, exerting a great force on the shaft. These bearings can be open or closed. When it comes to open linear bearings, they have a small opening and are mainly used in components that require different supports for the shaft or complete support to prevent shaft flexion. On the other hand, closed linear bearings are completely sealed, and among their various advantages, we find reduced friction and noise. Their design allows for a truly wide and unlimited range. They have high load capacities and extensive service life. Generally, their structure is simple and of high reliability, high performance and easy lubrication.

Linear shafts

The linear shaft is a long rod-shaped tool used to support linear motion, especially sliding motion. Thanks to the linear shaft, the motion can be guided and adjusted. The size and precision of the linear shaft are determined by the load and specific requirements. Linear shafts manufactured with strict precision tolerances are more durable and resistant to wear. The main function of the linear shaft is to provide support for linear motion. The shaft remains static, and an actuator is responsible for performing the work so that the sliding motion moves up and down the linear shaft. Most shafts are made of materials such as aluminum, steel alloys, stainless steel, carbon steel, plastics, etc. For example, stainless steel shafts are often used for applications where the shaft needs to resist oxidation and corrosion. In case a lighter option is needed, shafts composed of carbon fiber are preferable. Among the many advantages of linear shafts are a wide range of suitable materials to choose from, they are applicable in various industrial sectors, it is possible to manufacture them with different diameters, strengths and materials, etc.

Linear rail guide systems

A linear rail guide system allows for translational motion between parts with minimal friction loss. At the same time, it must withstand forces acting perpendicular to the path and moments in all three directions of space. A linear rail guide system is responsible for executing the contact between two solids by sliding along an axis. Sliding is the permitted movement, and rotation around that axis is restricted. As a consequence, the relative motion is a translation and the velocity at all points is given by the direction fixed by the link.