Product Introduction

Linear bearings are rolling support components used for linear motion, playing a key role in many fields such as automation equipment, mechanical manufacturing, and electronic devices. Here is a detailed introduction for you:

Product Appearance and Structure

From the appearance, common linear bearings have a simple and orderly design. Some of the linear bearings shown in the picture are cylindrical in shape, with a metallic shell and an internal ball bearing structure; Some are combined with aluminum sliders and other components to form components that are easier to install and use.

Its core structure includes an outer ring, an inner ring, rolling elements (usually ball bearings), and a cage. The outer and inner ring surfaces are precision machined with high-precision raceways, and the rolling elements roll in the raceways to achieve low friction linear motion; The cage plays a role in evenly separating the rolling elements and ensuring their stable operation.

Working principle

The working principle of linear bearings is based on rolling friction instead of sliding friction. When the shaft that matches it moves linearly in the linear bearing, the balls roll in the raceway, greatly reducing the resistance to motion. Compared to traditional sliding bearings, linear bearings can achieve high-speed and smooth linear motion with less friction, reducing energy loss and component wear.

Performance advantages

High precision: The manufacturing process of linear bearings is excellent, which can ensure extremely high motion accuracy. Whether it is linear displacement in precision instruments or precise positioning of components in automated production lines, linear bearings can meet the requirements and ensure the accuracy of equipment processing or operation.

Low friction: The presence of rolling elements significantly reduces the coefficient of friction, resulting in smoother equipment operation. This not only helps to increase the speed of movement, but also reduces the heat generated by friction, extending the service life of bearings and related components.

High load capacity: Although linear bearings have a compact appearance, they can withstand certain radial loads and some axial loads through reasonable structural design and material selection. In some light machinery and automation equipment, it can reliably support moving parts to ensure the normal operation of the equipment.

Long lifespan: High quality materials and good lubrication conditions enable linear bearings to have a longer service life. Under normal use and maintenance, it can reduce the frequency of replacement and lower the maintenance cost of the equipment.

application area 

Automation equipment: In automated production lines, robot arms, and other equipment, linear bearings provide precise and stable motion support for the extension and contraction of the robotic arm and the linear movement of the worktable, ensuring efficient and precise automation production.

Machine tool industry: used for the linear motion of worktable, tool holder and other components of machine tools, improving the machining accuracy and work efficiency of machine tools, and meeting the high-precision requirements of precision machining for moving parts.

Electronic equipment manufacturing: such as printed circuit board (PCB) manufacturing equipment, semiconductor packaging equipment, etc. Linear bearings help achieve precise movement and positioning of components, ensuring the production quality of electronic components.

Office equipment: Paper conveying systems such as printers and copiers use linear bearings to ensure smooth and accurate paper transportation, enhancing the user experience of office equipment.

Linear bearings, with their advantages of high precision, low friction, and high load capacity, have become indispensable key components in modern industrial production and various equipment, providing reliable and efficient solutions for linear motion needs.