What are the uses of linear bearings? How to install linear bearings？

Time:2021-06-29     View:727

Linear bearings have the characteristics of light weight, corrosion resistance, interchangeability, low cost, etc., are widely used in various machine equipment, can give full play to the maximum performance, and achieve the maximum economic benefits of labor saving and automation. So what are the uses of linear bearings? What are the specifications and installation of linear bearings? Let's get to know it together.

Linear bearing use

Linear bearings
Linear bearing specifications

The specifications of linear bearings are LM and LME, LIN-11 and LIN-12, KH series. Among them, the LM series is used in Asia and Southeast Asia. The metric size is the standard, and the outer diameter tolerance of the linear shaft is generally h7. The LME series are mostly used in Europe, America, Germany, Italy and other regions. The inch size is the standard, and there are also metric sizes. The outer diameter tolerance of the linear shaft is generally g6. LIN-11 stands for European standard plastic linear bearings, which are installed with a circlip limit, while the LIN-12 series is a narrow design, and its outer diameter is directly installed in a tight fit with the mounting seat hole, mainly to save installation space.

Linear bearing installation

1. Before installing the linear bearing, the burrs, dirt and surface scars on the mechanical installation surface must be removed. The linear bearing is coated with anti-rust oil. Please clean the reference surface with cleaning oil before installation. Usually, the reference surface is easy to rust after the anti-rust oil is removed. It is recommended to apply lubricating oil to the spindle with lower viscosity.

2. Gently place the linear bearing on the bed, and use lateral fixing screws or other fixing fixtures to lightly fit the line rail and the lateral mounting surface.
Before installation and use, confirm whether the screw holes are consistent. If the machining holes of the base do not match and forcibly tighten the bolts, it will greatly affect the combination accuracy and quality of use.

3. Tighten the positioning screws of the linear bearing from the center to both sides in order to make the track fit the vertical mounting surface, and tighten from the center to both ends to obtain a more stable accuracy. After the vertical reference surface is slightly tightened, the locking force of the lateral reference surface is strengthened, so that the linear bearing can fit the lateral reference surface reliably.

4. Use a torque wrench to tighten the torque one by one according to various materials, and slowly tighten the positioning screws of the linear bearing slide.

5. Use the same installation method to install the auxiliary rails, and install the sliding seats to the main rail and the auxiliary rails individually. Note that after the sliding seat is installed on the linear slide, many subsequent accessories cannot be installed due to limited installation space. The required accessories must be installed at this stage.

6.Gently place the mobile platform on the sliding seat of the linear bearing main rail and the secondary rail, and then tighten the lateral compression screws on the mobile platform, and the installation can be completed after positioning.