How to Choose a Linear Guide?

When selecting a linear guide, you need to consider several factors to ensure that the selected guide can meet the needs of a specific application. Here are some key considerations and steps:

1. Application Field of Linear Guide

Rolling guides (such as ball guides and roller guides) are suitable for high-precision and high-speed applications, while sliding guides are suitable for low-speed and low-load applications. Choose the appropriate type of guide according to the application requirements.

Different equipment and fields require different types of linear guides, which should be selected according to actual use requirements.

2. Accuracy Requirements

Accuracy requirements: Choose the appropriate guide type and accuracy level according to the accuracy requirements of the equipment.
The accuracy of the LMN series miniature linear guides is divided into three levels: ordinary (N), advanced (H), and precision (P).
LMG/LMGQ accuracy levels are ordinary (N), advanced (H), precision (P), super precision (SP), and ultra-high precision (UP).
The optional accuracy levels of the LMR series linear guides are advanced (H), precision (P), super precision (SP), and ultra-high precision (UP). Customers can choose according to the accuracy requirements of the equipment.

3. Load Capacity

Ball-type linear guides are suitable for high speed and light load; roller-type linear guides are suitable for high rigidity and heavy load
Select the appropriate guide model and specification according to the load requirements of the equipment to ensure that it can withstand sufficient load.

4. Speed ​​and Acceleration

Speed ​​and acceleration are two important aspects of dynamic performance. High speed usually requires high acceleration to reach the target speed in a short time.
The maximum speed of the linear guide under normal working conditions is roughly as follows:

Select the appropriate guide system according to the working speed and acceleration requirements of the equipment.

5. Protection and Lubrication

To give full play to the performance of linear guides, it is necessary to select the appropriate lubricant type and lubrication method according to the form, load, speed, etc. of the linear guide. Compared with sliding guides, rolling guides are less dependent on lubricants, so the oil supply is small and the replenishment interval is long, which can greatly reduce the maintenance and management work.
According to the actual working environment, select guides with good protection performance and lubrication system to ensure the long-term stable operation of the equipment.

Summary

When choosing the appropriate linear guide, it should be determined based on specific application requirements, load conditions and motion requirements. Different accuracy levels are suitable for different industrial scenarios to ensure the performance and reliability of the equipment.

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