How are linear motion slide unit classified?

There are many different guide rails in guide rails, such as cross guide rails, rollers, rollers, needle rollers, anti-climb guide rails, linear guide rails, etc. The linear motion slide unit is a part of the linear guide rail and has a certain supporting function. The linear motion slide unit is the core of the mechanical part. According to the structure, it can be divided into three categories: roller linear slider, ball linear slider and cylindrical linear slider, which are used for guidance and support, and move linearly and repeatedly in the specified direction; according to the friction characteristics, the linear motion guide rail is divided into rolling friction Guide rails, sliding friction guide rails, fluid friction guide rails, elastic friction guide rails, etc.; according to the effect, they can be divided into single-axis core linear sliders, double-axis core roller linear sliders and square ball linear sliders.

As we all know, its role is to guide and support moving parts, reciprocating in a given direction, and is linear; here, it is said that linear bearings are mainly used in automatic machinery, such as bending machines, machine tools, and laser welding machines imported from Germany , laser cutting machine, etc. Of course, the condition is that linear bearings and linear shafts should be used together.

The classification of linear motion slide unit includes the following categories:
1. Linear sliding module
It is suitable for various automation situations and serves as the rear drive unit of the transmission unit. Not only can it be used alone, but it can also be assembled into other devices as a modular component. Linear modules are generally composed of belts, linear sliders, aluminum alloy profiles, couplings, motors, photoelectric switches and other structures.

2. Self-lubricating linear motion slide unit
The purpose of the self-lubricating linear motion slide unit is to store oil in the linear slide and make it capillary so that the oil can be smoothed directly to the load ball and raceway surface. The so-called capillary phenomenon refers to the slow dispersion of liquid properties in other materials (towels, paper). Capillarity occurs when the cohesive force of liquid molecules is less than the attractive force between the liquid molecules and other substances. Since the power interface of the linear slider is on the ball, the purpose of the self-lubricating type is to smooth the ball, that is, to reduce the frictional resistance between the ball and the guide rail surface, reduce wear, and relatively increase the service life of the linear slider.

3. High dust-proof linear motion slide unit
When the linear slider is used in a harsh environment, proper selection of dust-proof accessories can effectively prevent iron filings, dust and other foreign matter from entering the slider, and prevent the intrusion of foreign matter from affecting the accuracy and service life of the linear slider.

4. Position linear motion slide unit
The positioning linear motion slide unit is a linear slide module set that integrates linear bearings and azimuth measurement devices, and can provide linear guidance and azimuth feedback functions. Taking advantage of the advantages of high linear stiffness and high precision of magnetic encoders, the linear slider and encoder are integrated together, saving organization and application space. The scale body and inductive reading head are not easily damaged by external forces. Its measurement characteristics will not be changed by the harsh working environment of oil, water, dust and debris; in addition, it can be used in sensory, noisy and high-temperature environments.

5. linear motion slide unit modular channel
Using a U-shaped structure, the modular channel that integrates the functions of the ball screw and linear slider not only has the characteristics of high rigidity and high precision, but also saves the application space of the device. It can be applied to machinery, semiconductor equipment and other organizations that require positioning.